Among 20 golden hamster litters recorded, there was a sample mean of =7.72 baby hamsters, with a sample standard deviation of s=2.5 hamsters per liter. Create a 98% confidence interval for the mean number of baby hamsters per liter.

Step-by-step explanation:

For this case we have the following info given:

represent the sample mean

represent the sample deviation

represent the sample size

The confidence interval is given by:

The confidence interval is 98% and the significance level is the degrees of freedom are given by:

And the critical value would be:

And replacing we got:

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.

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step-by-step explanation:

ever thing time 1 is a multiply by 1 it get