Normal probability and margin of error

Reference no: EM13105241

1. A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is?

2. With a .95 probability, the sample mean will provide a margin of error of?

Reference no: EM13105241

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Normal probability and margin of error : A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is?

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