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mean weight of 24.1 pounds with a standard deviation of 4.3 pounds. Assume that the population of weights normally d'ebuted. A pediatrician daims that the standard deviation of the

mean weight of 24.1 pounds with a standard deviation of 4.3 pounds. Assume that the population of weights normally d'ebuted. A pediatrician daims that the standard deviation of the

MATLAB: An Introduction with Applications
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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sample of 25 one-vear-old girls had a mean weight of 24.1 pounds with a standard deviation of 4.3 pounds. Assume that the population of weights normally d'ebuted. A pediatrician daims that the standard deviation of the weights of one-year-old girls is greater than S pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the a = 0.01 level of significance A.) Compute the test static and explain how B.) reject or keep C.) state conclusion
Part 1 of 5 Babies: A sample of 25 one-year-old girls had a mean weight of 24.1 pounds with a standard deviation of 4.3 pounds. Assume that the population of weights is normally distributed. A pediatrician claims that the standard deviation of the weights of one-year-old girls is greater than 5 pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the a-0.01 level of significance. State the appropriate null and alternate hypotheses. H₁:> Part 2 of 5 This hypothesis test is a right-tailed S Part: 2/5 5 Part 3 of 5 Find the critical value. Round the answer to three decimal places. For a=0.01, the critical value is 42.98- test. Compute the test statistic. Round the answer to three decimal places. S 9 h 12
Transcribed Image Text:Part 1 of 5 Babies: A sample of 25 one-year-old girls had a mean weight of 24.1 pounds with a standard deviation of 4.3 pounds. Assume that the population of weights is normally distributed. A pediatrician claims that the standard deviation of the weights of one-year-old girls is greater than 5 pounds. Do the data provide convincing evidence that the pediatrician's claim is true? Use the a-0.01 level of significance. State the appropriate null and alternate hypotheses. H₁:> Part 2 of 5 This hypothesis test is a right-tailed S Part: 2/5 5 Part 3 of 5 Find the critical value. Round the answer to three decimal places. For a=0.01, the critical value is 42.98- test. Compute the test statistic. Round the answer to three decimal places. S 9 h 12
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