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A random sample of 25 observations produced a sample mean

Consider H0: μ = 45 versus H1: μ < 45. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025 and the population is known to be normally distributed with σ = 6.

What is the value of z? Round to two decimal places.
Would you reject the null hypothesis?
Reject Ho
Do not reject Ho

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Basic Statistics: A random sample of 25 observations produced a sample mean

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