The cholesterol levels of adult males are approximately normally distributed with a mean of 224 mg/dL...
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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 The alternative hypothesis: H < 495 OSO Degrees of freedom: 16 The type of test statistic: Chi square O<O 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 No Yes 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 The alternative hypothesis: H < 495 OSO Degrees of freedom: 16 The type of test statistic: Chi square O<O 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 No Yes cholesterol levels of adult males is less than 495?
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Related Book For
Statistics for Business and Economics
ISBN: 978-0132930192
8th edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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