Please help with the attached problem?

A school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of 2.75 at a significance level of 0.05, and checks a randomly chosen sample of 50

classes. Make a histogram, and calculate x, the t-statistic, and the p-value.

From the histogram, can normality be assumed? (Pick Yes or No)

x=

t=

p=

Since the p-value is (Pick greaterless) than the significance level 0.05, the null hypothesis (Pick fails to be rejected, is rejected)

(Pick Sufficient, Insufficient) evidence exists that the mean GPA is greater than 2.75 .

(numbers below are the numbers from the spreadsheet)

3.09

2.73

2.58

2.68

2.84

2.68

2.64

2.62

2.35

2.72

2.63

2.77

2.72

3.03

2.71

2.96

2.74

3.01

2.88

2.68

2.83

3.02

2.83

2.71

2.67

2.79

2.65

2.56

2.78

2.89

2.40

2.38

2.41

2.83

2.86

3.01

2.80

2.84

2.95

2.75

2.93

2.48

2.34

2.97

2.85

2.74

2.84

3.10

2.62

2.77

123Check

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