The mean mass of the puppies at five months is 4.34 kg. The masses follow the...

The mean mass of the puppies at five months is 4.34 kg. The masses follow the normal distribution. In an effort to increase their mass, a supplement is added to their daily meals. The subsequent masses of a sample of five-month-old puppies were (in kilograms):

4.42

4.37

4.24

4.20

4.60

4.35

4.56

4.33

4.46

4.36

a. At the 0.01 level, has the supplement increased the mean mass of the puppies? (Round the final answer to 3 decimal places. Negative answers should be indicated by a minus sign.)

Value of the test statistic

Reject H₀ if t > .

(Click to select) Reject Do not reject H₀. There is (Click to select) not enough / enough evidence to conclude that the additive increased the mean weight of puppies.

b. Determine or estimate the p-value. (Round the final answer to 4 decimal places.)

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Expert Solution

orchestra answered 1 year ago

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