The amount of flour in a 10 pound bag of Queen Asha flour is normally distributed with a mean of 10 pounds and a standard deviation of 0.05 pounds. A sample of 12 bags of Queen Asha flour have the following weights: 10.03 10.02 9.98 9.99 9.99 10.01 10.02 9.96 9.94 9.98 9.99 10.00 Use this data with ? = 0.02 to test the claim that the standard deviation of weights is less than 0.05 pounds. (a) Which distribution is appropriate to use here? ---Select--- standard normal distribution chi-square distribution Student's t distribution (b) What type of test is necessary? ---Select--- left-tailed right-tailed two-tailed (c) The sample test statistic is (round to two decimal places) (d) The P-value is (round to four decimal places) (e) We ---Select--- reject fail to reject the null hypothesis, and conclude that at the ---Select--- 1% 2% 5% level of significance, there is ---Select--- sufficient insufficient evidence to conclude that the standard deviation of weights is less than 0.05 pounds.
The amount of flour in a 10 pound bag of Queen Asha flour is normally distributed with a mean of 10 pounds and a standard deviation of 0.05 pounds. A sample of 12 bags of Queen Asha flour have the following weights: 10.03 10.02 9.98 9.99 9.99 10.01 10.02 9.96 9.94 9.98 9.99 10.00 Use this data with ? = 0.02 to test the claim that the standard deviation of weights is less than 0.05 pounds. (a) Which distribution is appropriate to use here? ---Select--- standard normal distribution chi-square distribution Student's t distribution (b) What type of test is necessary? ---Select--- left-tailed right-tailed two-tailed (c) The sample test statistic is (round to two decimal places) (d) The P-value is (round to four decimal places) (e) We ---Select--- reject fail to reject the null hypothesis, and conclude that at the ---Select--- 1% 2% 5% level of significance, there is ---Select--- sufficient insufficient evidence to conclude that the standard deviation of weights is less than 0.05 pounds.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The amount of flour in a 10 pound bag of Queen Asha flour is
10.03 | 10.02 | 9.98 | 9.99 | 9.99 | 10.01 |
10.02 | 9.96 | 9.94 | 9.98 | 9.99 | 10.00 |
Use this data with ? = 0.02 to test the claim that the standard deviation of weights is less than 0.05 pounds.
(a) Which distribution is appropriate to use here? ---Select--- standard normal distribution chi-square distribution Student's t distribution
(b) What type of test is necessary? ---Select--- left-tailed right-tailed two-tailed
(c) The sample test statistic is (round to two decimal places)
(d) The P-value is (round to four decimal places)
(e) We ---Select--- reject fail to reject the null hypothesis, and conclude that at the ---Select--- 1% 2% 5% level of significance, there is ---Select--- sufficient insufficient evidence to conclude that the standard deviation of weights is less than 0.05 pounds.
(b) What type of test is necessary? ---Select--- left-tailed right-tailed two-tailed
(c) The sample test statistic is (round to two decimal places)
(d) The P-value is (round to four decimal places)
(e) We ---Select--- reject fail to reject the null hypothesis, and conclude that at the ---Select--- 1% 2% 5% level of significance, there is ---Select--- sufficient insufficient evidence to conclude that the standard deviation of weights is less than 0.05 pounds.
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