I know it's a lot, but if you can help id be very grateful for your time.

. Question 1 A study of the effects of exercise used rats bred to have high or low capacity for exercise. There were 10 high-capacity and 10 low-capacity rats. To compare the mean blood pressure of the two types of rats using the conservative Option 2 t- procedures. What are the associated degrees of freedom?. Question 10 You wish to test the claim that the first population mean is less than the second population mean at a significance level of o = 0.02. Ho: /1 = 12 Ha: /1 12 You obtain the following two samples of data. Sample #1 Sample #2 75.2 62.8 54.8 55.7 65.8 84.3 67.9 69.3 69.0 48.1 62.6 53.9 64.8 64.3 66.3 63.3 72.4 93.5 65.8 25.4 69.7 63.7 70.7 67.670.7 67.6 9 10 p 2 a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? p-value = Use Technology Round to 4 decimal places. c. The p-value is... O less than (or equal to) or O greater than ad. This test statistic leads to a decision to... C) reject the null I a P I? O accept the null q C) fail to reject the null e. As such. the nal conclusion is that... C' There is sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean. Q There is not sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean. O The sample data support the claim that the first population mean is less than the second population mean. Q There is not sufficient sample evidence to support the claim that the first population mean is less than the second population mean. IQuestion'H v > You wish to test the following claim [HR] at a significance level of o: = 0.02. d denotes the mean of the difference between pretest and post-test scores. Ho: d: H:pd} You believe the population of difference scores is normally distributedI but you do not know the standard deviation. 1'r'ou o_btain pre-test and post-test samples for n = subjects. The average difference {post - pre] is d = 16.? with a standard deviation of the differences of ad 2 45.5. a. What is the test statistic for this sample? test statistic = :1 Flound to 3 decimal places. b. What is the p-value for this sample? Round to 4 decimal places. p-value = :1 c. The p-value is... O less than {or equal to] or O greater than D: d. This test statistic leads to a decision to... Orejectthe null q ll P O accept the null O fail to reject the null e. As suchI the nal conclusion is that... 0 There is sufficient evidence to warrant rejection ofthe claim that the mean difference of post-test from pre-test is greater than D. Q There is not Sufficient evidence to warrant rejection ofthe claim that the mean difference of posttest from pretest is greater than D. O The sample data support the claim that the mean difference of posttest from pretest is greater than D. Q There is not sufficient sample evidence to support the claim that the mean difference of post-test from pre-test is greater than D. . Question 2 Give a 99.5% confidence interval, for /1 - #2 given the following information. n1 = 30, C1 = 2.74, $1 = 0.79 ng = 45, 12 = 2.76, 82 = 0.74 F Use Technology Rounded to 2 decimal places.' Question 4 v #2 You believe both populations are normally distributed, but you do not know the standard deviations for either. And you have no reason to believe the variances of the two populations are equal You obtain a sample of size n1 = 21 with a mean of $1 = 70.6 and a standard deviation of $1 = 16.5 from the first population. You obtain a sample of size n2 = 18 with a mean of $2 = 62.7 and a standard deviation of $2 = 8.6 from the second population. a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? For this calculation, use . p-value = Use Technology Round to 4 decimal places. c. The p-value is... O less than (or equal to) or O greater than ad. This test statistic leads to a decision to... O reject the null 97 p 2 O accept the null O fail to reject the null e. As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the first population mean is greater than the second population mean. O There is not sufficient evidence to warrant rejection of the claim that the first population mean is greater than the second population mean. O The sample data support the claim that the first population mean is greater than the second population mean. O There is not sufficient sample evidence to support the claim that the first population mean is greater than the second population mean.. Question 8 You wish to test the following claim (Ha) at a significance level of o = 0.001. Ho: /1 = 12 Ha: M F /2 You believe both populations are normally distributed, but you do not know the standard deviations for either. And you have no reason to believe the variances of the two populations are equal You obtain a sample of size n1 = 16 with a mean of @1 = 73.5 and a standard deviation of $1 = 8.3 from the first population. You obtain a sample of size n2 = 11 with a mean of $2 = 90.2 and a standard deviation of $2 = 14.3 from the second population. a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? For this calculation, use . p-value = Use Technology. Round to 4 decimal places. c. The p-value is... O less than (or equal to) o O greater than od. This test statistic leads to a decision to... O reject the null N O accept the null 9 O fail to reject the null e. As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the first population mean is not equal to the second population mean. O There is not sufficient evidence to warrant rejection of the claim that the first population mean is not equal to the second population mean. O The sample data support the claim that the first population mean is not equal to the second population mean. O There is not sufficient sample evidence to support the claim that the first population mean is not equal to the second population mean.. Question 9 You wish to test the following claim (Ha) at a significance level of o = 0.05. Ho: 1 = /2 Ha: M1 7 /2 You believe both populations are normally distributed, but you do not know the standard deviations for either. And you have no reason to believe the variances of the two populations are equal You obtain a sample of size n1 = 28 with a mean of 1 = 60.8 and a standard deviation of $1 = 18.4 from the first population. You obtain a sample of size n2 = 16 with a mean of $2 = 66.2 and a standard deviation of $2 = 16.5 from the second population. a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? For this calculation, use . p-value = Use Technology Round to 4 decimal places. c. The p-value is... O less than (or equal to) or O greater than od. This test statistic leads to a decision to... N O reject the null 9 O accept the null O fail to reject the null e. As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the first population mean is not equal to the second population mean. O There is not sufficient evidence to warrant rejection of the claim that the first population mean is not equal to the second population mean. O The sample data support the claim that the first population mean is not equal to the second population mean. O There is not sufficient sample evidence to support the claim that the first population mean is not equal to the second population mean