Question 4 1O 1 4 HW Score: 14.29%, 2of14 Homework: Chapter 10 Homework pan .1 m2 FIDIHtS 0 Points: I] of 1 The table shows the raw data for the results of a student survey of22 cars and whether they stopped completely at a stop sign or not. In the Color column, "Red" means The car was red and "No" means the car was not red. In the Stop column. "Stop" means the car stopped. and "Go" means the car did not stop fully. Create a twoway table to summarize these data. Use Red and No tor the columns (across the top} and Stop and Go for the rows. Are the two variables categorical or numerical? Click the icon to 1l'iew the data. _ X a Data table Color Stop Eh Complete the table shown below. 3:: :33 Red No Rad GD Red Go 5MP I: :| Red Go Go ho Stop I: 1 ho Stop ho Stop ho Stop Red Stop Red Go ho Stop Red Stop Red Go Red Stop ho Stop ho Stop ho Stop ho Stop Red Stop Red Go Red Go Question 7 1O 1 ? HW Score: 28.5?%, 4 of14 ' ' ' points 0 Points: III of 1 Homework: Chapter '10 Homework Perl 1 of- In a certain county in 2013, it was thought that 50% of men 5!] years old or older had never been screened for prostate cancer. Suppose a random sample of 150 of these men shows that St] of them had never been screened. a. What is the observed frequency of men who said they had not been screened? b. What is the observed proportion of men who said they had not been screened? c. What is the expected number in the sample to say.r they had never been screened ii 50% is the correct rate? <:> a. The observed frequency of men who said they had not been screened is E. (Type an integer or a decimal. Do not round.) HW Score: 28.5%, :1 0f 14 points 0 Points: [I of 1 Homework: Chapter '10 Question 3' 10.1.9 Homework Astudy compared men who viewed high levels of television violence as children with those who did not in order to study the differences with regard to physical abuse oftheir partners as adults. Use The table shown below to report the observed value of The chisquare statistic. The table shows both actual counts and expected counts {in parentheses}. High TV lllll'iolenoe Low TV lllll'iolence |'.-_|1 Yes, Physical Abuse 13 [7.75) 25 (30.24) No Physical Abuse 1? (22.24} 5521:8616) E) The chisquare statistic is X2 = D. (Round to two decimal places as needed.) HW Score: 28.57%. :1 of 1 :1 points 0 Points: I] of 1 Homework: Chapter 1|] Question 9! 10.1.10 Homework A study compared women who viewed high levels of television violence as children with those who did not in order to study the dierences with regard to physical abuse oftheir partners as adults. Use the table shown below to calculate the observed value of the chisquare statistic. The table shows both actual counts and expected counts {in parentheses}. High TV Violence Low T'J Violence % Yes, Physical Abuse 14 (3.91) 29 [34.09] No Physical Abuse 2681.09} 1241211391) The chisquare statistic is X2 = D. (Round to two decimal places as needed.) Homework: Chapter 10 Question 11, 10.2.17 HW Score: 35.71%, 5 of 14 Homework Part 1 of 5 points O Points: 0 of 1 Save A professor collected data from classes to see whether humans made selections randomly, as a random number generator would. Each of 40 students had to pick an integer from one to five. The data are summarized in the table below. A true random number generator would create roughly equal numbers of all five integers. Do a goodness-of-fit analysis to test the hypothesis that humans are not like random number generators. Use a significance level of a = 0.05, and assume these data were from a random sample of students. Click the icon to view the integer selection data. Integer Selection Step 1: Hypothesize Ho: Humans are like random number generators and produce numbers in equal quantities. Times Integer Chosen State the alternative hypothesis. Choose the correct answer below. One 5 Two 16 O A. Ha: Humans are not like random number generators and do not produce numbers in equal quantity Three 3 Four 11 O B. Ha: Humans are not like random number generators and are equally likely to pick all the integers. Five O C. Ha: Humans are not like random number generators and are more likely to pick odd integers. O D. Ha: Humans are not like random number generators and are more likely to pick even integers. Print DoneE Homework: Chapter 9 Homework Question 11, 9.3.27 HW Score: 30.15%, 5.13 of 17 points Part 1 of 2 O Points: 0 of 1 Save A hamburger chain sells large hamburgers. When we take a sample of 30 hamburgers and weigh them, we find that the mean is 0.48 pounds and the standard deviation is 0.3 pound. a. A technology input menu for calculating a confidence interval requires a sample size, a sample mean, and a sample standard deviation. State how you would fill in these numbers. b. Using the accompanying technology output, report the confidence interval in a carefully worded sentence. Click here to view the technology output. Technology Output - X a. Sample size: Sample mean: One-Sample T 0 00 Mean StDev SE Mean 95% CI Standard 30 0.48 0.3000 0.0548 (0.3680, 0.5920) deviation: (Type an integer or a decimal. Do not round.) Print DoneE Homework: Chapter 9 Homework Question 11, 9.3.27 HW Score: 30.15%, 5.13 of 17 points Part 1 of 2 O Points: 0 of 1 A hamburger chain sells large hamburgers. When we take a sample of 30 hamburgers and weigh them, we find that the mean is 0.48 pounds and the standard deviation is 0.3 pound. a. A technology input menu for calculating a confidence interval requires a sample size, a sample mean, and a sample standard deviation. State how you would fill in these numbers. b. Using the accompanying technology output, report the confidence interval in a carefully worded sentence. Click here to view the technology output. X Technology Output a. Sample size: Sample mean: One-Sample T N Mean StDev SE Mean 95% CI Standard 30 0.48 0.3000 0.0548 (0.3680, 0.5920) deviation: (Type an integer or a decimal. Do not round.) Print DoneE Homework: Chapter 9 Homework Question 4, 9.2.11 HW Score: 36.03%, 6.13 of 17 points Part 1 of 3 Points: 0 of 1 Some sources report that the weights of full-term newborn babies in a certain town have a mean of 9 pounds and a standard deviation of 1.2 pounds and are Normally distributed. a. What is the probability that one newborn baby will have a weight within 1.2 pounds of the mean-that is, between 7.8 and 10.2 pounds, or within one standard deviation of the mean? b. What is the probability that the average of four babies' weights will be within 1.2 pounds of the mean; will be between 7.8 and 10.2 pounds? c. Explain the difference between (a) and (b). a. The probability is| (Round to four decimal places as needed.)Homework: Chapter 9 HW Score: 36.03%, 6.13 of 17 E Question 5, 9.2.12 Homework Part 1 of 2 points Points: 0.83 of 1 Save Some sources report that the weights of full-term newborn babies have a mean of 7 pounds and a standard deviation of 0.6 pounds and are Normally distributed. In the given outputs, the shaded areas (reported as p = ) represent the probability that the mean will be larger than 7.6 or smaller than 6.4. One of the outputs uses a sample size of 4, and one uses a sample size of 9. Complete parts (a) and (b) below. Click the icon to view the outputs. . . . a. Which is which, and how do you know? Figure A is for the sample size of and Figure B is for the sample size of With sample sizes the standard error is smaller, and so the sample mean is likely to be "far" from the population mean.HW Score: 14.42%, 3.1? of 22 points 0 Points: III of 1 Homework: Chapter 6 Review Question 3: 6.1.5 Homework A magician has shaved an edge o one side of a Q sixsided die, and as a result, the die is no longer "fair." 0.24 The gure shows a graph of the probability distribution 3' D. a function {pdf}. Show the pdf in table format by listing all E 0.1 six possible outcomes and their probabilities. g 0-1 a: 0.0 l3 I104 2 3 4 5 5 Outcome on Die Number of Spots 1 2 3 4 5 6 Probability |_| |_| |_| |_| |_| |_| HW Score: 14.42%, 3.17 of 22 E Homework: Chapter 6 Review Homework > 105 )- 0.36944134 Prob( X - 105 1)= 0.63055866 Use Figure (A) to find the probability. The probability that a randomly selected person will have an IQ of 105 or above is (Round to four decimal places as needed.)Question 14 B 3 B? HW Score: 21.23%). 4.6? CIT 22 ' ' ' points 0 Points: I] of 1 Homework: Chapter 6 Review Homework Part '1 of 2 In a certain area, 35% of people mm a dog. Complete parts a and b below. _ E) a. Find the probability that exactly 5 out 0120 randomly selected people in the area own a dog. The probability that exactly 5 out of 20 randomly selected people in the area own a dog is (Type an integer or decimal rounded to three decimal places as needed.) Homework: Chapter 6 Review Question 15, 6.3.68 HW Score: 21.23%, 4.67 of 22 O Homework Part 1 of 2 points x Points: 0 of 1 Save In a certain area, 32% of people own a cat. Complete parts a and b below. a. Find the probability that exactly 2 out of 7 randomly selected people in the area own a cat. The probability that exactly 2 out of 7 randomly selected people in the area own a cat is (Type an integer or decimal rounded to three decimal places as needed.)E Homework: Chapter 6 Review Question 16, 6.3.79 HW Score: 21.23%, 4.67 of 22 Homework Part 1 of 2 points O Points: 0 of 1 Save According to research, 60% of millennials (those born between 1981 and 1997) reported using a library or bookmobile within the last year. Suppose that a random sample of 250 millennials is taken. Complete parts a and b below. . . . a. Complete this sentence: We would expect of the sample to have used a library or bookmobile within the last year, give or take We would expect of the sample to have used a library or bookmobile within the last year, give or take (Round to the nearest integer as needed.)Homework: Chapter 6 Review Question 17, 6.3.80 HW Score: 21.23%, 4.67 of 22 E Homework Part 1 of 3 points Points: 0 of 1 Save Consider a basketball player that is a 71% free-throw shooter. Assume that free throw shots are independent. Suppose, over the course of a season, the player attempts 700 free throws. Complete parts a and b below. . . . a. Find the mean and the standard deviation for the expected number of free throws we expect the player to make. The mean number of free throws we expect the player to make is (Round to the nearest integer as needed.)Homework: Chapter 6 Review HW Score: 22.94%, 5.05 of 22 Homework points 0 Points: I] of 1 Homework: Chapter 6 Review Question 20' B.CR.86 Homework Assume that adults have IQ scores that are Normally distributed with a mean of p =15 and a standard deviation 5:15. Find the probability that a randomly selected adult has an IQ of 126 or above. ...; The probability that a randomly selected adult has an IQ of 126 or more is |:. (Type an integer or decimal rounded to three decimal places as needed.) Homework: Chapter 5 Review Questin 22, BER-94 "W 5m\": 22'9\"" 5'0 points F"I'i'l f3 Homework 5' O 0 Points: o of'i A certain state has the highest high school graduation rate of all states at 90%. a. In a random sample of 20 high school students from the state, what is the probability that 1? will graduate? b. In a random sample of 2D high school students from the state, what is the probability than '15 or fewer will graduate? c. What is The probability that at least '1? high school students in our sample of 20 will graduate? r:) a. What is the probability that 1? out of 2D high school students will graduate? The probability that 1? students will graduate is E [Type an integer or decimal. Round to three decimal places as needed.) Question 1? 6 3 BO HW Score: 21.23%, 4.6? of 22 Homework: Chapter 6 Review Homework pan 1 of 3 points 0 Points: I] of 1 Consider a basketball player that is a 71% freethrow shooter. Assume that free throw shots are independent. Suppose, over the course of a season, the player attempts YUU tree throws. Complete parts a and b below. a. Find the mean and the standard deviation for the expected number of tree throws we expect the player to make. The mean number of free throws we expect the player to make is D. (Round to the nearest integer as needed.)