What price do farmers get for their apples?
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# What price do farmers get for their apples? random sample of 42 farming regions gave a sample mean of = \$6.88 per

100 pounds of apples. Assume that σ is known to be \$1.90 per 100 pounds of apples.

1. Find a 90% confidence interval for the mean price (per 100 pounds) that farmers in this region get for their apples (in dollars). What is the margin of error (in dollars)?

lower limit     \$

upper limit     \$

margin of error     \$

2.Find the sample size necessary for a 90% confidence level with maximal error of estimate E = 0.39 for the mean price per 100 pounds of apples. how many regions

3. A farm can bring 15 tons or 200 pounds per ton of apples to market. Find a 90% confidence interval for the population mean cash value of this crop. Also what is the margin of error ?

1. lower limit=6.4 \$ upper limit=7.36 \$... View the full answer

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