Mathematics, 16.12.2019 22:31, Amyra2003
An educational psychologist wishes to know the mean number of words a third grader can read per minute. she wants to make an estimate at the 90% level of confidence. for a sample of 837 third graders, the mean words per minute read was 24.9. assume a population standard deviation of 5.1. construct the confidence interval for the mean number of words a third grader can read per minute. round your answers to one decimal place.
Answers: 1
) is given by :-
= Sample mean
= Population standard deviation.
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