Instructor-created question Question Help ▼ Researchers measured bones from a species of fish from different time periods in an attermpt to determine whether changes occurred. Results are given below....

Extracted text: Instructor-created question Question Help ▼ Researchers measured bones from a species of fish from different time periods in an attermpt to determine whether changes occurred. Results are given below. Assume that both samples are independent simple randorm samples from populations having normal distributions. Use a 0.05 significance level to test the claim that the variation in bone size has changed in the last million years. 131.76 mm 136.84 mm 5.11 mm prehistoric modern 31 31 5.38 mm What are the null and alternative hypotheses? O A. Ho: of t03 O B. Ho: of =03 H1: of


Extracted text: nstructor-created question Question Help v Researchers measured bones from a species of fish from different time periods in an atteript to determine whether changes occurred. Results are given below. Assume that both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that the variation in bone size has changed in the last million years. 131.76 mm 5.11 mm prehistoric modern 31 31 136.84 mm 5.38 mm H: of 203 Use the F-table to find the upper critical value. |(Round to four decimal places as needed.) Identify the test statistic. F= (Round to four decimal places as needed.) Does the sample provide sufficient evidence that the variance in the bone size for this species of fish changed in the last million years? Answer yes or no: Click to select your answer(s) and then click Check Answer. Check Answer Clear All All parts showing