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Confidence intervals for the length of parts

A production line makes units with a mean weight of 80 g and standard deviation of 5 g. What is the probability that a sample of 100 units has a mean weight of less than 79 g?

A machine makes parts with a variance of 14.5 cm in length. A random sample of 50 parts has a mean length of 106.5 cm. What are the 95% and 99% confidence intervals for the length of parts?

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Basic Statistics: Confidence intervals for the length of parts

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Solution Preview :

Prepared by a verified Expert

Basic Statistics: Confidence intervals for the length of parts

Reference No:- TGS0689341

Have a Question? (oR Write a Review)

Recent Questions Asked Basic Statistics

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Solution Preview :

Prepared by a verified Expert

Basic Statistics: Confidence intervals for the length of parts

Reference No:- TGS0689341

Recent Questions Asked Basic Statistics

Q : What steps should be included in presentation

Q : Find evidence that mean amount is different from one gallon

Q : When producing the stockholders equity section

Q : Determine the heating effect and loss

Q : Confidence intervals for the length of parts

Q : Determining the probability of event

Q : Compute the gross profit of software

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