A researcher whises to test the hypothesis that the varince of It was reported t

Question

A researcher whises to test the hypothesis that the varince of It was reported that the variance in The number of carbohydrates found in a random sample of fast-food entrees is listed below. Is there sufficient evidence to conclude that the variance differs from 105? Use a significance level of 0.10.

H0: 2 = 105 Ha: 2 105. Test statistic: 17.28 ,Critical value(s): 3.325 , 16.919. Reject the null hypothesis. There is enough evidence to conclude that the variance differs from 105.

H0: 2 = 105 Ha: 2 >105. Test statistic: 17.28 Critical value(s): 4.168. Reject the null hypothesis. There is enough evidence to conclude that the variance is more than105.

H0: 2 = 105 Ha: 2 <105. Test statistic: 17.28 Critical value(s): 4.168. Reject the null hypothesis. There is enough evidence to conclude that the variance is less than 105.

H0: 2 = 105 Ha: 2 105. Test statistic: 17.28 ,Critical value(s): 3.325 , 16.919. Do not reject the null hypothesis. There is not enough evidence to conclude that the variance differs from 105.

H0: 2 = 105 Ha: 2 105. Test statistic: 17.28 ,Critical value(s): 3.325 , 16.919. Reject the null hypothesis. There is enough evidence to conclude that the variance differs from 105.

H0: 2 = 105 Ha: 2 >105. Test statistic: 17.28 Critical value(s): 4.168. Reject the null hypothesis. There is enough evidence to conclude that the variance is more than105.

H0: 2 = 105 Ha: 2 <105. Test statistic: 17.28 Critical value(s): 4.168. Reject the null hypothesis. There is enough evidence to conclude that the variance is less than 105.

H0: 2 = 105 Ha: 2 105. Test statistic: 17.28 ,Critical value(s): 3.325 , 16.919. Do not reject the null hypothesis. There is not enough evidence to conclude that the variance differs from 105.

Explanation / Answer

Apparently we do not require more information ot answer this. This is a two tailed test, to test "difference", hence either a or d is correct. Since Test-statistic is greater than larger critical value, we reject null, and conclude that variance is different from 105

Option(A)

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