Question

: A veterinarian believes that the mean number of grams of protein in diet dog food...

:

A veterinarian believes that the mean number of grams of protein in diet dog food (group 1) is different from the mean number of grams of protein in non-diet dog food (group 2). The population standard deviations are known.

This is a :

Two-tailed t-test

Left-tailed t-test

Right-tailed z-test

Two-tailed z-test

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

two tailed z test.

[ explanation:-

here, the population standard deviations are known...so, we will do z test.

veterinarian believes that the mean number of grams of protein in diet dog food (group 1) is different from the mean number of grams of protein in non-diet dog food...so, this is a non directional or two tailed test.

hypothesis:-

[ this is the believe of the veterinarian ] ]

***in case of doubt, comment below. And if u liked the solution, please like.

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