Chapter 7: Q. 55 (page 430)
A uniform distribution has a minimum of six and a maximum of ten. A sample of is taken.
Find .
Short Answer
The value probability that is approximately:.
Chapter 7: Q. 55 (page 430)
A uniform distribution has a minimum of six and a maximum of ten. A sample of is taken.
Find .
The value probability that is approximately:.
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A manufacturer produces 25 -pound lifting weights. The lowest actual weight is 24 pounds, and the highest is 26 pounds. Each weight is equally likely so the distribution of weights is uniform. A sample of 100 weights is taken.
Draw the graph from the exercise.
The Screw Right Company claims their inch screws are within ±ofthe claimed mean diameter of inches with a standard deviation of inches. The following data were recorded.
The screws were randomly selected from the local home repair store.
a. Find the mean diameter and standard deviation for the sample
b. Find the probability that randomly selected screws will be within the stated tolerance levels. Is the company’s diameter claim plausible?
An unknown distribution has a mean of and a standard deviation of six. Let = one object from this distribution. What is the sample size if the standard deviation of is ?
Find the sum with a –score of .
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