Question: 1) Take a random sample of 10 data values from column 1 TestScore (NOT COLUMN 2). Using the sample that you selected, determine and state

1) Take a random sample of 10 data values from column

1) Take a random sample of 10 data values from column 1 "TestScore" (NOT COLUMN 2). Using the sample that you selected, determine and state the sample mean. Compare the sample mean to the original confidence interval. Is the sample of 10 data values you selected a "good sample"? Explain why!

10 Data Values From Column
53
56
64
79
80
81
84
88
93
96

Today, the professor claims the mean student performance on his midterm has significantly improved from last year. Last year, the mean midterm score for all of his students was 70. The professor uses a random sample of 25 student's midterm scores. Use a hypothesis test (t-test) to test the professors claim using a 5% significance level.

1 "TestScore" (NOT COLUMN 2). Using the sample that you selected, determine

and state the sample mean. Compare the sample mean to the original

One sample T hypothesis test: p: Mean of variable H0:].L=70 HA: \">70 Hypothesis test results: \"mm

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