The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.3 ounces. We are interested in testing to determine whether the variance of the population is significantly higher than 0.006. The significance level is 5%.

The critical value for the test is

a. 37.652

b. 40.646

c. 14.611

d. 15.379

At 5% level of significance, the null hypothesis

a. should be rejected

b. should not be rejected

c. should be revised

d. None of these alternatives is correct.

The null hypothesis is

a. S² < 0.006

b. S² = 0.006

c. ² = 0.006

d. ² > 0.006

The test statistic is

a. 1250

b. 375

c. 390

d. 1300