a) Find a 99% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crops. Data: X = :C = b) Find the sample size necessary for a 90% confidence level with maximal margin of error E=0.8 for the mean price per 100 pounds of watermelons.

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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What price do farmers get for their watermelon crops? In the third week of July , a random sample of 40 farmers of the regions got a sample mean = $12 per 100 pounds of watermelons . Assume that standard deviation is known to be $2 per 100 pounds . 

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a) Find a 99% confidence interval for the population mean price (per 100 pounds) that farmers
in this region get for their watermelon crops.
Data: X =
;O =
drawr
b) Find the sample size necessary for a 90% confidence level with maximal margin of error
E=0.8 for the mean price per 100 pounds of watermelons.
an
Gu
Name
DR
IA
Transcribed Image Text:a) Find a 99% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crops. Data: X = ;O = drawr b) Find the sample size necessary for a 90% confidence level with maximal margin of error E=0.8 for the mean price per 100 pounds of watermelons. an Gu Name DR IA
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