The class data set gives the exam scores of randomly selected students in introductory statistics classes that meet in the morning and in the afternoon.
A.Is it reasonable to assume the data came from normal distributions? Justify your answer with appropriate plots and statistics.
B.Determine whether there is a difference between the mean scores in morning and afternoon classes. Use a= 0.05 .
Identify the parametes
Null hypothesis
Alternative hypothesis
Test statistic t obs. =
p-value=
Conclusion
Really?
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The class data set gives the exam scores of randomly selected students in introductory statistics classes that meet in the morning and in the…
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