The distribution of actual weights of 8-ounce chocolate bars is approximately normal with a mean of 8.1 ounces and a standard deviation of 0.1 ounces. 1 ne company who produces the chocolate bars does not want the weight to fall below 7.85 ounces, for fear that consumers will complain. b) Suppose you select 4 chocolate bars at random and calculate the mean weight. What is the probability that the mean weight of 4 randomly selected chocolate bars is less than 7.85 ounces. Be sure to: • draw, label, and shade the distribution verify conditions for shape and independence and show work for mean and standard deviation of this distribution standardize find the area give answer in context

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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normal with a mean of 8.1 ounces and a standard deviation of 0.1 ounces. The
The distribution of actual weights of 8-ounce chocolate bars is approximately
company who produces the chocolate bars does not want the weight to fall below
7.85 ounces, for fear that consumers will complain.
b) Suppose you select 4 chocolate bars at random and calculate the mean weight.
What is the probability that the mean weight of 4 randomly selected chocolate
bars is less than 7.85 ounces. Be sure to:
draw, label, and shade the distribution
verify conditions for shape and independence and show work for mean
and standard deviation of this distribution
standardize
find the area
give answer in context
Transcribed Image Text:normal with a mean of 8.1 ounces and a standard deviation of 0.1 ounces. The The distribution of actual weights of 8-ounce chocolate bars is approximately company who produces the chocolate bars does not want the weight to fall below 7.85 ounces, for fear that consumers will complain. b) Suppose you select 4 chocolate bars at random and calculate the mean weight. What is the probability that the mean weight of 4 randomly selected chocolate bars is less than 7.85 ounces. Be sure to: draw, label, and shade the distribution verify conditions for shape and independence and show work for mean and standard deviation of this distribution standardize find the area give answer in context
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