Consider the information in the following table.

Calories Per Serving

Flavor Diff.=

Brand Strawberry Vanilla Strawberry-Vanilla

America's Choice 210 200 10

Breyer's Lowfat 220 220 0

Columbo 220 180 40

Dannon Light'n'Fit 120 120 0

Dannon Lowfat 210 230 -20

Dannon la Crme 140 140 0

Great Value 180 170 10

La Yogurt 170 158 12

Mountain High 200 170 30

Stonyfield Farm 100 120 -20

Yoplait Custard 190 190 0

Yoplait Light 100 100 0

1.State the null and alternative hypotheses

2.State the level of significance,

3.State the standardized test statistic

4.State the rejection region

5.Calculate the standardized test statistic and see if it falls in the rejection region.

6.State your conclusion in terms of the problem.

7.Do these data suggest that there is a significant difference in calories between servings of strawberry and vanilla yogurt?Explain your answer.

8.Why do you think this experiment was designed as a matched samples test?

9.Construct a 95% confidence interval for the mean difference in the calories per serving for strawberry and vanilla yogurt.