9. A particular brand of coffee contains an average of 112 mg of caffeine per cup with a standard deviation of 20 mg. You want to investigate the same to estimate if the true population mean of caffeine content is correct within 5 mg adopting 98% confidence. How many cups of the same brand of coffee should you have for your sample?

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Author:Amos Gilat
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SoCial mieuia
Lhe 9977o Confidence i ervai
e true propor
amedia accounts.
9. A particular brand of coffee contains an average of 112 mg of caffeine per cup with a standard
deviation of 20 mg. You want to investigate the same to estimate if the true population mean of
caffeine content is correct within 5 mg adopting 98% confidence. How many cups of the same
brand of coffee should you have for your sample?
10. A samIYUTTA
IGIIUETr product has been conduc
were
Transcribed Image Text:SoCial mieuia Lhe 9977o Confidence i ervai e true propor amedia accounts. 9. A particular brand of coffee contains an average of 112 mg of caffeine per cup with a standard deviation of 20 mg. You want to investigate the same to estimate if the true population mean of caffeine content is correct within 5 mg adopting 98% confidence. How many cups of the same brand of coffee should you have for your sample? 10. A samIYUTTA IGIIUETr product has been conduc were
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