Question

In: Statistics and Probability

For the following questions, indicate what kind of analysis you would perform and identify the hypothesis....

For the following questions, indicate what kind of analysis you would perform and identify the hypothesis.

2. Consider the gain in weight of 99 female rats between 28 and 84 days after birth. 40 were fit on a high protein diet and 59 on a low diet (Expect a higher weight for high protein diet). Suppose we find the standard deviation between the two groups are equivalent.

3. In fall 2017, students in the 9:30 am section (45 students) of Biological statistics class had an average height of 66.6 inches, while the average height in the 11:30 am section (55 students) was 64.6 inches. Are the average heights of the two sections significantly different?

Solutions

Expert Solution

(2)

(i)

Kind of analysis we would perform:

2 Independent Samples t test for equal population variances

(ii)

H0: Null Hypothesis: = (Gain of weight of rats with high protein diet and Gain of weight of rats with low protein diet are not different.

HA:Alternative Hypothesis: (Gain of weight of rats with high protein diet and Gain of weight of rats with low protein diet are different

(3)

(i)

Kind of analysis we would perform:

2 Independent Samples t test

(ii)

H0: Null Hypothesis: = (Average height of students in the 9:30 am section (45 students) of Biological class and Average height of students in the 11:30 am section (55 students) are not different.

HA:Alternative Hypothesis: (Average height of students in the 9:30 am section (45 students) of Biological class and Average height of students in the 11:30 am section (55 students) are different.

orchestra answered 1 year ago

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