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Topic: Sampling distribution of the sample mean of known population variance mean 1 = 60 standard deviation 0 = 18 Sample size n = 15

Topic: Sampling distribution of the sample mean of known population variance

mean 1 = 60 standard deviation 0 = 18 Sample size n = 15 1.) what is the probability that the mean in the sample is at least 87? - what is the value of z? - what is the case number (# )? - What is the area or probability of that sample mean that is at least 87? - what is the conclusion? b. mean u = 40 standard deviation 0= 18 Sample size n = 15 1. ) What is the probability that the mean is the sample is less than 80 - What is the value of z ? - what is the case number ( # )? - what is the area or probability of that sample mean that less than so? - What is the conclusion

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