Mathematics
Mathematics, 20.07.2021 09:10, Ruby2480

A publisher wants to estimate the mean length of time (in minutes) all adults spend reading newspapers. To determine this estimate, the publisher takes
a random sample of 15 people and obtains the following results. 11, 9, 8, 10,
10, 9, 7, 11, 11, 7, 6, 9, 10, 8, 10. From past studies, the publisher assumes o
is 1.5 minutes and that the population of times is normally distributed. The
90% confidence interval for uis
(Sample mean = 9.1)


A publisher wants to estimate the mean length of time (in minutes) all adults

spend reading newsp

answer
Answers: 1

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