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EXCEL SHEET WORK ON LY GET POSITVE FEEDBACK The average selling price of an iPhone purchased by a random sample of 35 citizens was $796.Assume

EXCEL SHEET WORK ON LY GET POSITVE FEEDBACK

The average selling price of an iPhone purchased by a random sample of 35 citizens was $796.Assume the population standard deviation was $90.

a.Construct a 90% confidence interval to estimate the average selling price.

b.What is the margin of error for this interval?

c.Construct a 95% confidence interval to estimate the average selling price.

d.What is the margin of error for this interval?

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