Question

A college's data about the incoming freshmen indicates that the mean of their high school GPAs was 3.3, with a standard deviation of 0.35; the distribution was roughly mound-shaped and only slightly skewed. The students are randomly assigned to freshman writing seminars in groups of 25. What might the mean GPA of one of these seminar groups be? Describe the appropriate sampling distribution model, including shape, center, and spread, with attention to assumptions and conditions. Make a sketch using the 68-95-99.7 Rule. Describe the appropriate sampling distribution model, including shape, center, and spread. A. N, (Type integers or decimals.) B. The sampling distribution model is not Normal because the sample size is less than 30. What assumptions and conditions must be satisfied for the sampling distribution model to be appropriate? Select all that apply. A. The distribution of GPAs is roughly unimodal and symmetric, so the sample is large enough. B. The distribution of the students' GPAs is Normal. C. The students represent less than 10% of all possible students. D. Individuals' GPAs are independent. Make a sketch using the 68-95-99.7 Rule. Choose the correct graph below.

          A college's data about the incoming freshmen indicates
that the mean of their high school GPAs was
3.3,
with a standard deviation of
0.35;
the distribution was roughly mound-shaped and only
slightly skewed. The students are randomly assigned to freshman
writing seminars in groups of
25.
What might the mean GPA of one of these seminar groups be?
Describe the appropriate sampling distribution model,
including shape, center, and spread, with attention to
assumptions and conditions. Make a sketch using
the 68-95-99.7 Rule.
Describe the appropriate sampling distribution model,
including shape, center, and spread.
A.
N,
(Type integers or decimals.)
B.
The sampling distribution model is not Normal because the sample
size is less than 30.
What assumptions and conditions must be satisfied for the
sampling distribution model to be appropriate? Select all
that apply.
A.
The distribution of GPAs is roughly unimodal
and symmetric, so the sample is large enough.
B.
The distribution of the students' GPAs is Normal.
C.
The students represent less than 10% of all possible
students.
D.
Individuals' GPAs are independent.
Make a sketch using the 68-95-99.7 Rule. Choose the
correct graph below.

Added by Gabriel K.

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