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Good evening, I need answers to these questions please. If you need to use a calculator or excel use what works best for you. I
Good evening, I need answers to these questions please. If you need to use a calculator or excel use what works best for you. I do write fantastic reviews! :-)
1.) Part 2?
Is the lottery fair? Power ball is a multistate lottery in which players try to guess the numbers that will turn up in a drawing of numbered balls. One of the balls drawn is the "Powerball." Matching the number drawn on the Powerball increases one's winnings. In a 1'." month period, the Power ball was drawn from a collection of 35 balls numbered 1 through 35. A total of 147 drawings were made. For the purpose of this exercise, we grouped the numbers in to ve categories: 17, 814, and so on. If the lottery is fair, then the winning number is equally likely to occur in any category. Following are the observed frequencies. Test the hypothesis that each of the categories is equally likely. Use the 0.010 level of signicance and the Pvalue method with the 1184 Plus calculator. Category 17 814 1521 2223 2935 Observed 25 30 34 23 35 Sel'lddalaloEmel (a) State the null and alternate hypotheses. H0=P1 =P2 =P3 =P4 =P5 = H1: Some or all of the actual probabilities from those specied by HD' (b) nd the Pvalue. Round the answer to four decimal places. The Pvalue is D. A government agency computed the proportion of U.S. residents who lived in each of four geographic regions in a particular year. Then a simple random sample was drawn of 1000 people living in the United States in the current year. The following table presents the results. Past Year Observed Proporlion Counts 152 0.248 227 0.343 390 0.228 23 1 Region Can you conclude that the proportions of people living in the various regions changed between the current year and the past year? Use the 0.05 level of signicance and the Pvalue method 1with the TI84 Plus calculator. H0: The proportions of U.S. residents who lived in each geographic region in the past year are 'l' the same as (a) State the null and alternate hypotheses. those in the current year. H1: The proportions of U.S. residents who lived in each geographic region in the past year are not 1' the same as those in the current year. (b) nd the Pvalue. Round the answer to at least four decimal places. The Pvalue is D. A governmental agency computed the proportion of violent crimes in the United States in a particular year falling into each of four categories. A simple random sample of 520 violent crimes committed in California during that year were categorized in the same way. The following table presents the results. [1.5. California Category Proportion Frequency Murder 0.015 T Forcible Rape 0.08 3'? Robbery 0.320 200 Aggravated Assault 0.585 276 SenddatatoEmel Can you conclude that the proportions of crimes in the various categories in California differ from those in the United States as a whole? Use the 0.01 level of signicance and the Pvalue method with the 1134 Plus calculator. (a) State the null and alternate hypotheses. Ho: The proportions of crimes in the various categories in California the same as those in the United States as a whole. H1: The proportions of crimes in the various categories in California the same as those in the United States as a whole. (b) nd the Pvalue. Round the answer to at least four decimal places. The Pvalue is D . No smoking: The General Social Survey conducted a poll of 675 adults in which the subjects were asked whether they agree that the government should prohibit smoking in public places- In addition, each was asked how many people lived in his or her household. The results are summarized in the following contingency table. Household Size l 2 3 4 5 Agree 71 110 55 31 42 No Opinion 35 51 31 26 26 Disagree 51 62 4D 31 13 Sel'lddatatoEmel Test the hypothesis of independence. Use the o = 0.10 level of signicance and the Pvalue method with the 1184 Plus calculator. What do you conclude? (a) State the null and alternate hypotheses. H0: Household size and opinion independent. H1: Household size and opinion independent. (b) nd the Pvalue. Round your answer to at least four decimal places. The Pvalue is D. Age discrimination: The following table presents the numbers of employees, by age group, who were promotedr or not promoted, in a sample drawn from a certain industry during the past year. Age Under 30 30-39 40-49 50 and Over Promoted ll} 14 22 13 Not Promoted 32 31 41 28 SenddatatoEmel Can you conclude mat the people in some age groups are more likely to be promoted man those in other age groups? Use the :1 = {1.10 level of signicance and the Pyalue method with the "Fl84 Plus calculator. (a) State the null and alternate hypotheses. H0: The people in all age groups equally likely to be promoted. H1: The people in all age groups equally likely to be promoted. {b} nd the Pvalue. Round your answer to at least four decimal places. The Pvalue is [j . A recent silldy examined the eects of carbon monoxide exposure on a group of construction workers. The following table presents the numbers of workers who reported various symptomsr along with the shift (morning, evening, or night) that they worked. Homing Shift Evening Shift Night Shift Inuenza 20 14 10 Headache 20 37 5 Weakness 3 18 8 Shortness of Breath 9 6 11 SenddatatoEmel Test the hypothesis of independence. Use the u = 0.01 level of signicance and the Pvalue method with the TI84 Plus calculator. 1What do you conclude? State the null and alternate hypotheses. H0: The shift and reported symptoms independent. H1: The shift and reported symptoms independent. This hypothesis test is a righttailed Y tESt- Find the Pvalue. Round your answer to four decimal places. The Pvalue is D . Price of eggs and milk: The following table presents the average price in dollars for a dozen eggs and a gallon of milk for each month from January through August 2013. Use the 1184 Plus calculator to answer the following. Dozen Eggs Gallon of Milk 2.01 3.47' 1.94 3.43 1.80 3.52 1.65 3.43 1.77 3.47!' 1.96 3.54 1.69 3.40 1.67 3.50 If Semi data to Excel } Part 2 of 4 (b) Compute the correlation coefficient between the price of eggs and the price of milk. Round the answer to at least three decimal places. The correlation coefficient is r =Foot temperatures: Foot ulcers are a common problem for people with diabetes. Higher skin temperatures on the foot indicate an increased risk of ulcers. In a study performed at the Colorado School of Mines, skin temperatures on both feet were measured, in degrees Fahrenheit, for 3 diabetic patients. The results are presented in the following table. Use a TI34 Plus calculator to answer the following. Left Foot Right Foot 85 85 T5 80 88 86 87' 32 78 T8 89 86 76 80 80 80 if Send data to Excel .:| Part 2 of 4 (b) Compute the correlation coefficient between the temperatures of the left and right feet. Round the answer to at least three decimal places. The correlation coefficient is r =Foot temperatures: Foot ulcers are a common problem for people with diabetes. Higher skin temperatures on the foot indicate an increased risk of ulcers. In a study performed at the Colorado School of Mines, skin temperatures on both feet were measured, in degrees Fahrenheit, for 8 diabetic patients. The results are presented in the following table. Use a TIB4 calculator to answer the following. Left Foot Right Foot 80 80 87 82 85 85 88 89 89 90 78 78 76 81 89 86 If Send data in Excel T) If the left foot temperatures of two patients differ by 3 degrees, by howr much would you predict their right foot temperatures to differ? Round the answer to three decimal places. The right foot temperatures would differ by D degrees. Interpreting technology: The following display from the 1184 Plus calculator presents the leastsquares regression line for predicting the price of a certain stock (y) from the prime interest rate in percent (9:). y = 3 +393: 0 = 145372153 b = 0.3302690? r2 = 0.3 99867509 3" = 9.532350% Write the equation of the leastsquares regression line. Use the full accuracy shown in the calculator output (do not round your answers}. A Regression line equation: y = 2.46872153 + 0.3302690? DStep by Step Solution
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