solving a word problem and please do organize a answer

0 Question 10 v B 0/1 pt '0 3 8 99 CD Details The table below shows a stem-and-leaf diagram for the test scores of students in Liberal Arts Math. @ __ [- 1- [- How many students took the test? l: What is the lowest score on the test? :1 What is the highest score on the test? l: The mean score on the test is: The median of test scores is: :] 0 Question 4 v IZ 0/1 pt '0 3 8 99 G) Details The following refer to the following data set: 110.6 95.8 110.6 86.7 97.8 109.1 78.3 110.6 88.3 91.3 What is the arithmetic mean of this data set? What is the median of this data set? What is the mode of this data set? What is the midrange of this data set? Question Help: El Message instructor Submit Question 0 Question 15 v B 0/1 pt 0 3 8 99 0 Details The results of a common standardized test used in psychology research is designed so that the population mean is 160 and the standard deviation is 30. A subject earns a score of 127. What is the z-score for this raw score? Question Help: El Video El Message instructor Submit Question 15. Years to Earn Bachelor's Degree Listed below are the lengths of time (in years) it took for a random sample of college students to earn bachelor's degrees (based on data from the National Center for Education Statistics). Based on these results, is it unusual for someone to earn a bachelor's degree in 12 years? 44444445454545454566899131315 42. The Empirical Rule Based on Data Set 3 in Appendix B, body temperatures of healthy,' adults have a bell-shaped distribution with a mean of 98.20F and a standard deviation of 0.62F. Using the empirical rule, what is the approximate percentage of healthy adults with body temperatures a. within 1 standard deviation of the mean, or between 97.58\"F and 98.82F? 1:. between 96.34\"}: and 100.06F? Section 3.3 2. .1 Scores If your score on your next statistics test is convened to a z score. which of these 2 scores would you prefer: 2.DO, l.00, 0, 1.00. 2.0!]? Why? 4. Measures 0! Location The values of P50, Q2, and the median are found for the net in- comes reported on all individual 1040 tax forms led last year. What do those values have in common? PAGE 33 0 Question 10 v E 0/1 pt '0 3 8 99 G) Details The heights of women have a symmetric distribution with a mean of 64 inches and a standard deviation of 2.8 inches. 1. Approximately 68% of women have heights between (l:], l:]> inches. 2. Approximately 95% of women have heights between (S, S) inches. 3. Approximately 99.7% of women have heights between (C, Cl Question Help: 8 Message instructor Submit Question Question 19 0/1 pt 5 3 99 0 Details Find the five-number summary for the following set of data. Data 4 4 6 10 12 14 16 17 19 21 Min = Q1 = Q2 = Q3 = Max Question Help: Message instructor Submit QuestionQuestion 12 B 0/1 pt 0 3 8 99 0 Details Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man 63.1 inches tall. (to 2 decimal places) :] Question Help: 8 Message instructor Submit Question Boxplots. In Exercises 29-32, use the given data to construct a boxplot and identify the 5-number summary. 30. Old Faithful The following are the interval times (minutes) between eruptions of the Old Faithful geyser in Yellowstone National Park (based on data from the U.S. National Park Service). 81 81 86 87 89 92 93 94 95 96 97 98 98 101 101 106 32. Speeds The following are speeds (mi/h) of cars measured with a radar gun on the New Jersey Turnpike (based on data from Statlib and authors Joseph Kadane and John Lamberth). 70 70 71 72 72 73 73 74 76 77 78 78 78 79 79 PAGE 360 Question 3 v E 0/1 pt '0 3 8 99 G Details In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High Mean score on Number of ninth School test graders _ Central -_- Lincoln -'_ The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 78.7 . Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. mean of all ninth grader's scores = Question Help: 8 Message instructor Submit Question 0 Question 8 v l3 0/1 pt '0 3 8 99 (9 Details In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell- shaped and has a mean of 39 and a standard deviation of 9. Using the empirical rule, what is the approximate percentage of daily phone calls numbering between 12 and 66? Do not enter the percent symbol. Question Help: 8 Message instructor Submit Question 0 Question 11 v E 0/1 pt '0 3 8 99 G) Details The following are the amounts of total fat (in grams) in different kinds of sweet treats available at your local donut shop. (a) What is the mean amount of fat? Round your answer to the nearest tenth, if necessary. [3 (b) What is the median amount of fat? [3 0 Question 14 v E 0/1 pt '0 3 8 99 0 Details On a recent quiz, the class mean was 75 with a standard deviation of 4. Calculate the z-score (to 2 decimal places) for a person who received score of 89. Is this unusual? 0 Unusual 0 Not Unusual Question Help: El Video 8 Message instructor Submit Question 0 Question 17 v 80/1 pt '0 3 8 99 (D Details Find the 5 number summary for the 15 data values shown in the table below. Use the locator/ percentile method described in the book. Observe that the data has been sorted for you in increasing order from left-to-right and then top-to-bottom in the table below. If any cells at the end of the table are blank, then just ignore them (i.e. any blank cells are intentional). 5 number summary: Question Help: 8 Message instructor Submit Question 0 Question 9 v E 0/1 pt '0 3 8 99 G) Details The table below shows a stem-and-leaf diagram for the test scores of students in a math class. @ [- 5- I. m_ How many students took the test? :1 What is the lowest score on the test? :1 What is the highest score on the test? [:1 The median score on the test is: :1 Question Help: El Message instructor Submit Question 14. Red Blood Cell Counts Based on Data Set 1 "Body Data" in Appendix B, males have red blood cell counts with a mean of 4.719 and a standard deviation of 0.490, while females have red blood cell counts with a mean of 4.349 and a standard deviation of 0.402. Who has the higher count relative to the sample from which it came: a male with a count of 5.58 or a female with a count of 5.23? Explain. Percentiles. In Exercises 17-20, use the following duration times (seconds) of 24 eruptions of the Old Faithful geyser in Yellowstone National Park. The duration times are sorted from lowest to highest. Find the percentile corresponding to the given time. 110 120 178 213 234 234 235 237 240 243 245 245 250 250 251 252 254 255 255 259 260 266 269 273 18. 240 sec 20. 260 sec 22. Q 24. P40 28. P85 PAGE 350 Question 16 v B 0/1 pt 0 3 8 99 G) Details Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the height of a man with a z-score of 0.1 (to 2 decimal places) l: Question Help: El Video 8 Message instructor Submit Question 0 Question 9 v E4 0/1 pt '0 3 8 99 (D Details The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 48 ounces and a standard deviation of 7 ounces. Use the Empirical Rule and a sketch of the normal distribution in order to answer these questions. a) 68% of the widget weights lie between [: b) What percentage of the widget weights lie between 34 and c) What percentage of the widget weights lie below 69 ? Question Help: El Video 8 Message instructor Submit Question 0 Question 8 v E 0/1 pt '0 3 8 99 (9 Details Find the median, first quartile (Q1) and the third quartile (Q3) for the data shown, which is already sorted. The number of data is n= 11. Katye Kozak's algorithm: Sort the data and compute the median. When n is an odd number, the median is the center value. When n is an even number, the median is the center value. After computing the median, Q1 is the median of the 1st half of the data, not including the median value. Q3 is the median of the 2nd half of the data, not including the median value. Do not round your answers. Question Help: El Message instructor Submit Question Chapter 3.1 Homework Score: 0/11 0/11 answered Progress saved Done (E) 15' 0 Question 1 v B 0/1 pt '0 3 8 99 (D Details Use the following frequency distribution table to find the value of the mean score. '1 Scores 5' Frequency Follow-up Question: Find the value of the standard deviation. Give your answer accurate to 1 place after the decimal point. 0 Question 3 v E 0/1 pt '0 3 8 99 0 Details On a recent quiz, the class mean was 73 with a standard deviation of 2. Calculate the z-score (to at least 2 decimal places) for a person who received score of 77. Is this unusual? 0 Unusual 0 Not Unusual Question Help: 8 Message instructor Submit Question 0 Question 5 v E 0/1 pt '0 3 8 99 (9 Details A sample of size n = 10 is drawn from a population. The data is shown below. 115.8 112.2 97.6 101.5 134.5 121.8 134.5 108.8 117 134.5 What is the range of this data set? What is the standard deviation of this data set? (Remember, it is a sample.) Please report the answer with appropriate rounding, reporting 2 more decimal places than the original data. Please, please, please do not calculate the value by hand. Question Help: El Message instructor Submit Question 0 Question 20 v B 0/1 pt 0 3 8 99 G) Details On a recent quiz, the class mean was 69 with a standard deviation of 4.2. Calculate the z-score (to 4 decimal places) for a person who received score of 70.68. Is this unusual? 0 Unusual O Not Unusual Question Help: 8 Message instructor Submit Question 0 Question 7 v B 0/1 pt '0 3 8 99 G) Details Find the median, first quartile (Q1) and the third quartile (Q3) for the data shown, which is already sorted. The number of data is n= 8. Kate Kozak's algorithm: Sort the data and compute the median. When n is an odd number, the median is the center value. When n is an even number, the median is the center value. After computing the median, Q1 is the median of the 1st half of the data, not including the median value. Q3 is the median of the 2nd half of the data, not including the median value. Do not round your answers. 0 Question 5 v E 0/1 pt '0 3 23 99 G) Details The table below shows a stem-and-leaf diagram for the test scores of students in Liberal Arts Math. How many students took the test? l: What is the lowest score on the test? l: What is the highest score on the test? l: The mean score on the test is: l: The midrange of test scores is: l: Question Help: 8 Message instructor Submit Question 0 Question 11 v l3 011 pt 0 3 8 99 G) Details At two years of age, the lengths of sardines have an approximately bell-shaped and symmetric distribution with a mean of 20.3 cm and a standard deviation of 0.6 cm. 1. The middle 68% of sardines have a length between ( 2. The middle 95% of sardines have a length between ( [3 SW 3. The middle 99. 7% of sardines have a length between ( C], [3) cm Question Help: 8 Message instructor Submit Question 0 Question 2 v E 0/1 pt '0 3 8 99 6) Details The following refer to the following data set: 108.8 102.7 92.4 91.1 111.9 122.1 122.1 89.8 122.1 109.6 What is the arithmetic mean of this data set? What is the median of this data set? What is the mode of this data set? Question Help: El Message instructor Submit Question Lab Assignment Name: Section 3.1 Due Date: Math 34 This Lab is to be worked in the Math Lab when an instructor is present. You may work with your classmates, but be sure to complete your own assignment to turn in. To receive credit for this assignment you must log in at least 2 hours each week. In exercises 6 - 14, find the (a) mean, (b) median, (c) mode, an (d) midrange for the given sample data. Express answers with the appropriate units of measurement. Then answer the given questions. 6. Top 10 Most Expensive Colleges Listed below are the annual tuition amounts of the 10 most expensive colleges in the United States for a recent year. The colleges listed in order are Sarah Iawrence, NYU, George Washington, Bates, Skidmore, Johns Hopkins. Georgetown, Connecticut College, Harvey Mudd, and Vassar. What does this \"Top 10\" list tell us about the population ofall U.S. college tuitions? $54,410 $51,991 $51,730 551.300 $51,196 $51,190 $51.122 $51,115 $51,037 $50,375 8. Tests of Child Booster Seat! The National Highway Traffic Safety Administration conducted crash tests of child booster seats for cars. Listed below are results from those tests, with the measurements given in \"hie,\" which is a measurement of a standard \"head injury criterion.\" According to the safety requirement, the hit measurement should be less than 1000 hic. Do the results suggest that all child booster seats meet the specified requirement? 774 I549 1210 546 431 612 11. Mercury in Suahl Listed below are the amounts of mercury (in parts per million, or ppm) found in tuna sushi sampled at different stores in New York City. The study was spon- sored by the New York Time: and the stores (in order) are D'Agostino, Eli's Manhattan, Fair- way, Food Emporium, Gourmet Garage, Grace's Marketplace, and Whole Foods. Which store has the healthiesr tuna? Does it appear that the different stores get their tuna From the same supplier? 0.56 0.75 0.10 0.95 1.25 0.54 0.83 PAGE 26 Lab Assignment Name: Section 3.2 and 3.3 Due Date: Math 34 This Lab is to be worked in the Math Lab when an instructor is present. You may work with your classmates, but be sure to complete your own assignment to turn in. To receive credit for this assignment you must log in at least 2 hours each week. 4. Symbols Identify the symbols used for each of the following: (a) sample standard deviation; (b) population standard deviation; (c) sample variance; (d) population variance. In Eaten-ire: 5-20, nd the range, variance, and standard deviation n- obe given maple dam. Include appropriate units (such as \"minutes? in your results. (He some data were used in Section 32 where wemnd measures of center. Hm wend measures of varia- tion.) "Jen owner the given questions. 6. Top 10 Most Expensive Colleges Listed below are the annual tuition amounts of the 10 most expensive colleges in the United States for a recent year. The colleges listed in order are Sarah Lawrence, NYU, George Washington, Bates, Skidrnore. johns Hopkins, Georgetown, Connecticut College. Harvey Mudd, and Vassar. Can this \"Top [0\" list tell us anything about the standard deviation of the population of all US. college tuitions? $54,410 $51,991 $51,730 $51,300 $51,196 $51,190 $51,122 $51,115 $51,037 $50,875 9. Harry Potter Listed below are the gross amounts (in millions of dollars) earned in box office receipts for the movie Harry Potter and the HalfBlood Prince. The movie opened on a Wednesday, and the amounts are listed in order for the first 14 days of the movie's release. If you invested in this movie, what characteristic of the data set would you care about most, and is it a measure of center or variation? 5822272921101087911944 PAGE 32 0 Question 4 v E 0/1 pt 0 3 8 99 (9 Details The boxplots below shows salaries for Construction workers and Teachers. Construction Teacher -l||lllI- 20 25 30 35 40 45 50 Salary (thousands of$) Q Jennie makes the minimum salary for a construction worker. Markos makes the third quartile salary for a teacher. Who makes more money? O Markos O Jennie (Note that the boxplots are labeled in thousands of dollars. For example, 30 means $30,000. If the difference appears to be $5, it is actually $5000. If this were the correct answer, you could enter it as either 5000 or 5,000) Question Help: Video 8 Message instructor Submit Question o @ 0 Question 2 v B 0/1 pt '0 3 8 99 (9 Details An experiment was conducted to measure the effectiveness of various feed supplements on the growth rate of chickens. A five number summary of the weights of the chicks in grams six weeks after hatching is as follows. Source: Anonymous (1948) Biometrika, 35, 214. Min = 115 Q1 = 192 Median = 263 Q3 = 324 Max = 415 1. About 192. 2. About 263. 3. About 324. 4. About and 324. percent of the chicks weigh more than percent of the chicks weigh more than percent of the chicks weigh more than percent of the chicks weigh between 192 DUDE Question 1 0/1 pt 9 3 99 0 Details Calculate the standard deviation and variance of the sample data shown, to two decimal places X 18.9 3.4 12.1 28.9 18.3 21.4 Standard deviation: Variance: Question Help: Video Message instructor Submit QuestionIn Exercises 21-24, find the mean and median for each of the two samples; then compare the two sets of results. 22. Parking Meter Theft Listed below are amounts (in millions of dollars) collected from parking meters by Brinks and others in New York City during similar time periods. A larger data set was used to convict five Brinks employees of grand larceny. The data were provided by the attorney for New York City, and they are listed on the DASI web site. Do the limited data listed here show evidence of stealing by Brinks employees? Collection contractor was Brinks: 1.3 1.5 1.3 1.5 1.4 1.7 1.8 1.7 1.7 1.6 Collection contractor was not Brinks: 2.2 1.9 1.5 1.6 1.5 1.7 1.9 1.6 1.6 1.8 In Exercises 29-32, find the mean of the data summarized in the given frequency distri- bution. Also, compare the computed means to the actual means obtained by using the original list of data values, which are as follows: (Exercise 29) 35.9 years; (Exercise 30) 44.1 years; (Exercise 31) 84.4; (Exercise 32) 15.0 years. 32. Years President Lived After First Inauguration Frequency 30. Age of Best Actor 0-4 8 When Oscar Was Won Frequency 5-9 2 20-29 10-14 5 30-39 26 15-19 7 40-49 35 20-24 4 50-59 13 25-29 6 60-69 6 30-34 0 70-79 1 35-39 PAGE 27O Question 6 80/1 pt '0 3 8 99 G) Details A sample of size n = 10 is drawn from a population. The data is shown below. 136.9 117.8 112.8 101.4 136.9 109.2 99.9 136.9 124.7 118.8 What is the range of this data set? What is the standard deviation of this data set? (Remember, it is a sample.) Please report the answer with appropriate rounding, reporting 2 more decimal places than the original data. Question Help: 8 Message instructor Submit Question 0 Question 6 v l3 0/1 pt '0 3 8 99 G) Details The maintenance department at the main campus of a large state university receives daily requests to replace fluorecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 56 and a standard deviation of 5. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 56 and 66? Do not enter the percent symbol. Question Help: El Video 1 IE] Video 2 8 Message instructor Submit