What price do farmers get for their apples?
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Question

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 ?

Top Answer

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

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