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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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everlyn85 everlyn85
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6 years ago
Nancy Joon, Inc has 1500 employees. A simple random sample of 81 employees was selected, and the individuals in the sample were asked how much they contribute (monthly) to their retirement accounts. The sample mean, , was 150 with a standard deviation, s, of 45.
 a. Estimate the standard error of the mean.
  b. Develop an approximate 95 confidence interval for the population mean.
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vbassvbass
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everlyn85 Author
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6 years ago
Smart ... Thanks!
mcraver1
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Yesterday
You make an excellent tutor!
Hellish Lover
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2 hours ago
This helped my grade so much Perfect
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