Please please help me with all parts. Thank you so much!

Q 1

- Part (d) State the distribution to use for the test. Ot6 OX3 Ot7 OX3z E] Part (e) What is the test statistic? (Round your answer to the nearest whole number.) E] Part (f) What is the p-value? (Round your answer to four decimal places.) Explain what the p-value means for this problem. 0 If H0 is false, then there is a chance equal to the p-value that the value of the test statistic will be equal to or greater than the calculated value. 0 If H0 is true, then there is a chance equal to the p-value that the value of the test statistic will be equal to or less than the calculated value. 0 If H0 is false, then there is a chance equal to the p-value that the value of the test statistic will be equal to or less than the calculated value. 0 If H0 is true, then there is a chance equal to the p-value that the value of the test statistic will be equal to or greater than the calculated value. - Part (9) Sketch a picture of this situation. Label and scale the horizontal axis, and shade the region(s) corresponding to the p-value. (Upload your le below.) Choose File No le chosen I This answer has not been graded yet. - Part (h) Indicate the correct decision ("reject" or "do not reject" the null hypothesis) and write the appropriate conclusion. (i) Alpha: a = (ii) Decision: O reject the null hypothesis O do not reject the null hypothesis (iii) Reason for decision: Since a p-value, we do not reject the null hypothesis. O Since a > p-value, we reject the null hypothesis. (iv) Conclusion: There is sufficient evidence to conclude that the data do not fit the distribution of the population of each race in the county. There is not sufficient evidence to conclude that the data do not fit the distribution of the population of each race in the county. Additional Materials eBookCar manufacturers are interested in whether there is a relationship between the size of car an individual drives and the number of people in the driver's family (that is, whether car size and family size are independent). To test this, suppose that 796 car owners were randomly surveyed with the following results. Conduct a test for independence at the 5% level. Family Size Sub & Compact Mid-size Full-size Van & Truck 1 19 35 40 36 2 20 49 69 79 3 - 4 20 49 100 91 5+ 20 29 71 69 - Part (a) State the null hypothesis. 0 The size of the car an individual drives is independent of the number of people in the driver's family. 0 The size of the car an individual drives is dependent on the number of people in the driver's family. E] Part (b) State the alternative hypothesis. 0 The size of the car an individual drives is dependent on the number of people in the driver's family. 0 The size of the car an individual drives is independent of the number of people in the driver's family. - Part (0) What are the degrees of freedom? (Enter an exact number as an integer, fraction, or decimal.) - Part (d) State the distribution to use for the test. Ot3 Ot9 013 01% Part (e) What is the test statistic? (Round your answer to two decimal places.) Part (f) What is the p-value? (Round your answer to four decimal places.) Explain what the p-value means for this problem. 0 If H0 is true, then there is a chance equal to the p-value that the value of the test statistic will be equal to or less than the calculated value. 0 If H0 is false, then there is a chance equal to the p-value that the value of the test statistic will be equal to or greater than the calculated value. 0 If H0 is true, then there is a chance equal to the p-value that the value of the test statistic will be equal to or greater than the calculated value. 0 If H0 is false, then there is a chance equal to the p-value that the value of the test statistic will be equal to or less than the calculated value. - Part (g) Sketch a picture of this situation. Label and scale the horizontal axis, and shade the region(s) corresponding to the p-value. 1/2(p-value) p-value 1/2(p-value) X 2 O O 1/2(p-value) p-value 1/2(p-value) X X O O- Part (h) Indicate the correct decision ("reject" or "do not reject" the null hypothesis) and write the appropriate conclusion. (i) Alpha (Enter an exact number as an integer, fraction, or decimal.) (ii) Decision: 0 reject the null hypothesis 0 do not reject the null hypothesis (iii) Reason for decision: 0 Since a > p-value, we reject the null hypothesis. 0 Since a p-value, we do not reject the null hypothesis. (iv) Conclusion: 0 There is sufficient evidence to conclude that the size of the car an individual drives is dependent on the number of people in the driver's family. 0 There is not sufcient evidence to conclude that the size of the car an individual drives is dependent on the number of people in the driver's family. Additional Materials III eBook A city in a particular county has a population of 462,035; the population of the county is 9,519,338. Conduct a goodness of fittest at the 5% level to determine if the racial demographics of the city fit that of the county. Round expected frequency to two decimal places. Race Percent, county Expected #, city Actual #, city American Indian and Alaska Native 0.8 3696.28 3,823 Asian 11.9 55,505 Black or African American 9.8 68,612 Native Hawaiian and other Pacic Islander 0.3 5,665 White, including Hispanic/Latino 48.7 208,941 Other 23.5 95,192 Two or more races 5.0 24,297 - Part (a) State the null hypothesis. 0 The data do not t the distribution of the population of each race in the county. 0 The data t the distribution of the population of each race in the county. - Part (b) State the alternative hypothesis. 0 The data do not t the distribution of the population of each race in the county. 0 The data t the distribution of the population of each race in the county. - Part (0) What are the degrees of freedom