A researcher whises to test the hypothesis that the varince

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 H_a: 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 H_a: 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 H_a: 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 H_a: 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.

Solution

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)