Standard deviation of the weight of nickels, Basic Statistics

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Standard deviation of the weight of nickels

A previous study of the nickels showed that standard deviation of the weight of nickels is 150 milligrams. How many nickels does a coin counter manufacturer need to weigh so that she can be 98% confident that her sample mean is within 25 milligrams of the true average weight of a nickel?

A. 36

B. 196

C. 239

D. 139

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Basic Statistics: Standard deviation of the weight of nickels

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Basic Statistics: Standard deviation of the weight of nickels

Reference No:- TGS0866568

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Recent Questions Asked Basic Statistics

Q : Confidence interval for average amount of time

Q : Determine probability of failure within given hours

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Q : Standard deviation of the weight of nickels

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Q : Electric field strength at the mid-point among the two disks

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Ask an Expert for Answer!!

Basic Statistics: Standard deviation of the weight of nickels

Reference No:- TGS0866568

Recent Questions Asked Basic Statistics

Q : Confidence interval for average amount of time

Q : Determine probability of failure within given hours

Q : Mean annual cost to attend a private university

Q : Calculate the confidence intervals for population mean

Q : Standard deviation of the weight of nickels

Q : Percentage of women who wear shoes

Q : Determine bacterian population after ten days

Q : Finding out the liquids index of refraction

Q : Electric field strength at the mid-point among the two disks

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