Can someone explain these test individually and which one we use for these quest

Question

Can someone explain these test individually and which one we use for these questions please?

Question 5 0 out of 10 points An animal scientist is interested in comparing the nutritional value of two different dog food brands. He feeds exactly 2 cups/day of Brand A to 10 greyhounds and the same amount of Brand B to another 10 greyhounds and records the amount of weight each gains after two weeks. The best test to determine whether weight gain differs between food brands is a Answers: a. one-sample t-test b. two-sample t-test c. paired t-test d. Chi-square goodness of fit e. chi-square test of independence Question 6 0 out of 10 points An animal scientist is interested in determining whether different breeds of dogs respond differently to the nutrition in a particular brand of dog food. Twenty-four dogs from each of three breeds were fed the dog food for two weeks. The researcher counted the number of dogs who gained weight and the number who lost weight over that period of time. The best test to determine whether dog weight gain/loss differs among dog breeds is a: a. one-sample t-test b. two-sample t-test c. paired t-test d. Chi-square goodness-of-fit e. Chi-square test of independence Answers:

Explanation / Answer

Question 5)
In this example we want to compare the nutritional value of two dog food brands.

The appropriate test is two sample t-test.

Option (b) is correct.

This is because two samples are independent.

Question 6)
Appropriate test here is Chi-square test of independence.

The test is applied when you have two categorical variables from a single population. It is used to determine whether there is a significant association between the two variables.

Here we want to know whether different breeds has different impact of the dog food.

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