The cholesterol levels of adult males are approximately normally distributed with a mean of 224 mg/dL and a variance, o, of 495. Some researchers claim that the variance of cholesterol levels of adult males is less than 495. A sample of 17 adult males' blood tests had a mean of 223 mg/dL and a variance of 274. Is there enough evidence to conclude, at the 0.05 level of significance, that the variance of cholesterol levels of adult males is less than 495? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) The null hypothesis: = 495 H, : < 495 The alternative hypothesis: OSO Degrees of freedom: The type of test statistic: Chi square 16 The value of the test statistic: (Round to at least three decimal places.) 8.857 The critical value at the 0.05 level of significance: (Round to at least three decimal places.) 26.296 Can we support the claim that the variance of O Yes O No cholesterol levels of adult males is less than 495?

The cholesterol levels of adult males are approximately normally distributed with a mean of 224 mg/dL and a variance, o, of 495. Some researchers claim that the variance of cholesterol levels of adult males is less than 495. A sample of 17 adult males' blood tests had a mean of 223 mg/dL and a variance of 274. Is there enough evidence to conclude, at the 0.05 level of significance, that the variance of cholesterol levels of adult males is less than 495? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) The null hypothesis: = 495 H, : < 495 The alternative hypothesis: OSO Degrees of freedom: The type of test statistic: Chi square 16 The value of the test statistic: (Round to at least three decimal places.) 8.857 The critical value at the 0.05 level of significance: (Round to at least three decimal places.) 26.296 Can we support the claim that the variance of O Yes O No cholesterol levels of adult males is less than 495?

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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