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  3. the mean mass of the puppies at five months is 4.3

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

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Statistics

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

4.424.374.244.204.604.354.564.334.464.36

a. At the 0.01 level, has the supplementincreased the mean mass of the puppies? (Round the finalanswer to 3 decimal places. Negative answers should be indicated bya minus sign.)

Value of the test statistic

Reject H0 if t>  .

(Click to select)  Reject  Do notreject  H0. Thereis  (Click to select)  not enough / enoughevidence to conclude that the additive increased the mean weight ofpuppies.

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

  

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