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Compute is the probability for the given frequency distribution
Given the frequency distribution:
Soldiers
Rank/Sex
M
F
General
15
5
Major
60
20
Colonel
150
10
Sergeant
390
50
What is the probability that a soldier is a female?
Assuming that all other variables are held constant, explain how the value of z influenced by each of the following:
Assuming that the variability is unchanged (i.e., σ = 6), is there sufficient evidence to suggest that the strength of the product has increased at the 1% level of significance?
Find the standard error of the difference in sample means,
What is the probability that in a sample of 10 pieces: 5 or more will be defective?
The probability that the daily demand at this store is at least one and at most three is:
Her results (in hours until turning a particular shade of brown) are in the table below. At ∞= .01, did she see a difference between the two treatments?
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Use MegaStat's output for simple linear regression to determine the regression equation
Calculate η 2 , the percentage of variance accounted for by treatment.
Comparing the experimental and theoretical probabilities, can you say the die used in this experiment is a fair die? Why or why not?
The machine will stop working if more than three components fail. Find the probability that the machine will be working.
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
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