employee It is known that the population of all these

Last updated: 6/4/2023

employee It is known that the population of all these employee commute distances is approximately normally distributed The corporation claims that the standard deviation of this population is 8 44 km You are a recruiter who wants to test this claim with a random sample of 32 employees Based on your sample follow the steps below to construct a 90 confidence interval for the population standard deviation of all the employee commute distances Then state whether the confidence interval you construct contradicts the corporation s claim If necessary consult a list of formulas a Click on Take Sample to see the results from the random sample Take Sample Point estimate of the population variance 0 Sample size 0 Left critical value 0 Right critical value 0 Compute To find the confidence interval for the population standard deviation first find the confidence interval for the population variance Number of employees 32 Enter the values of the point estimate of the population variance the sample size the left critical value and the right critical value you need for your 90 confidence interval for the population variance Choose the correct critical values from the table of critical values provided When you are done select Compute 0 00 Sample mean t 0 00 17 95 90 confidence interval for the i population variance 2 00 90 confidence interval for the population standard deviation Sample standard deviation 5 79 4 00 2 5 00 Critical values Left Right 0 995 14 458 0 005 55 003 b Based on your sample graph the 90 confidence interval for the population standard deviation of all the employee commute distances 6 00 70 975 17 539 2 Enter the values for the lower and upper limits on the graph to show your confidence interval Round the values to two decimal places For the point enter the claim 8 44 made by the corporation on your graph 90 confidence interval for the population standard deviation Sample variance s 17 539 2 025 48 232 2 70 950 19 281 0 050 44 985 33 5241 O No the confidence interval does not contradict the claim The claimed standard deviation 8 44 is inside the 90 confidence interval 2 O No the confidence interval does not contradict the claim The claimed standard deviation 8 44 is outside the 90 confidence interval O Yes the confidence interval contradicts the claim The claimed standard deviation 8 44 is inside the 90 confidence interval 5 00 O Yes the confidence interval contradicts the claim The claimed standard deviation 844 is outside the X c Does the 90 confidence interval you constructed contradict the corporation s claim Choose the best answer from the choices below X 10 00 10 00 1 E