Question

The mean SAT score in the US is 1060. Set a level of alpha for a...

The mean SAT score in the US is 1060. Set a level of alpha for a statistical test at 0.001, 0.01, or 0.05. Discuss your selection. Write the statistical hypotheses. And using the data in the file, determine whether there is a significant difference in the mean SAT score at the high school and the US mean.

t-Test: One-Sample Assuming Unequal Variances
SAT Score 2017
Mean 878.3801
Variance 22041.12
Observations 321
Hypothesized Mean Difference 1060
df 320
t Stat -21.9179
P(T<=t) one-tail 5.67E-66
t Critical one-tail 1.649629
P(T<=t) two-tail 1.13E-65
t Critical two-tail 1.967405

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