Find the following chisquare distribution values from the chisquare distribution table. (Round your answers to three decimal places.) (a) 252035 with 0'!\" = 9 S (b) 3520325 with df= 10 S (c) x203\" with df= 20 S (d) rm with 0'1\": 15 S (e) x2035 with df = 19 S You may need to use the appropriate appendix table or technology to answer this question. A sample of 24 items provides a sample standard deviation of 6. (a) Compute the 90% confidence interval estimate of the population variance. (Round your answers to three decimal places.) to (b) Compute the 95% confidence interval estimate of the population variance. (Round your answers to three decimal places.) to (c) Compute the 95% confidence interval estimate of the population standard deviation. (Round your answers to two decimal places.) toYou may need to use the appropriate appendix table or technology to answer this question. A sample of 13 items provides a sample mean of 40 and a sample variance of 11. Compute a 95% condence interval estimate for the standard deviation of the population. (Round your answers to three decimal places.) Em: A sample of 20 items provides a sample standard deviation of 9.5. Test the following hypotheses using a = 0.05. What is your conclusion? H0: 02 g 50 Ha: a2 > 50 Use the pvalue approach. Find the value of the test statistic. (Round your answer to three decimal places.) :I Find the pivalue. (Round your answer to three decimal places.) State your co nclu sion. 0 Reject Ho' We conclude that the population variance is greater than 50. 0 Do not reject H0. We conclude that the population variance is greater than 50. O Reject Ho' We conclude that the population variance is not greater than 50. 0 Do not reject Ho' We conclude that the population variance is not greater than 50. Use the critical value approach. Find the value of the test statistic. (Round your answer to three decimal places.) :| State the critical values for the rejection rule. (Round your answers to three decimal places. If the test is onetailed, enter NONE for the unused tail.) test statistic s \\:| test statistic 2 \\:| State your c0 nclu sion. 0 Reject H0. We conclude that the population variance is greater than 50. 0 Do not reject H0. We conclude that the population variance is greater than 50. O Reject Ho' We conclude that the population variance is not greater than 50. 0 Do not reject H0. We conclude that the population variance is not greater than 50. You may need to use the appropriate appendix table or technology to answer this question. A sample of 16 students showed that the variance in the number of hours they spend studying is 22. At the 5% level of significance, test to see if the variance of the population is significantly different from 27. Use the critical value approach. State the null and alternative hypotheses (in hours?). (Enter != for # as needed.) Ho: H .: Find the value of the test statistic. (Round your answer to three decimal places.) State the critical value(s) for the rejection rule. (Round your answer(s) to three decimal places. If the test is one-tailed, enter NONE for the unused tail.) test statistic s test statistic > What is your conclusion? O Reject Ho. We cannot conclude that the population variance is significantly different from 27 hours. O Reject Ho. We can conclude that the population variance is significantly different from 27 hours. O Do not reject Ho. We can conclude that the population variance is significantly different from 27 hours. O Do not reject Ho. We cannot conclude that the population variance is significantly different from 27 hours