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Suppose a random sample of size49is drawn from a population with a mean of273. If91% of the time the sample mean is less than275, what

Suppose a random sample of size49is drawn from a population with a mean of273. If91% of the time the sample mean is less than275, what is the population standard deviation?

Appendix A Statistical Tables

(Round your answer to 2 decimal places, e.g. 15.25.)

=

enter the population standard deviation rounded to 2 decimal places

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