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A study of 80 white mice showed that their average weight was 3.7 ounces. The standard deviation of the population is 0.6 ounces. Which of the following is the 95% confidence interval for the mean weight per white mice?
a. (2.52,4.88)b. (3.54, 3.86)c. (3.57, 3.83)d. (3.39,4.01)
In Colorado Springs the newspaper runs mug shots of wanted criminals. The 17% of those published are arrested through information provided to the police. If 200 are published, find the probability that less than 30 are arrested.
According to Fortune, Missouri is within 500 miles of 44% of all U.S. manufacturing plants 8. If a Missouri company needs parts manufactured in 122 different plants, what is the probability that at least half of them can be found within 500 miles ..
This assignment involves displaying an understanding of an independent t-test. Based on my hypothetical research question: What do early childhood educators report about their experiences with fathers' involvement in their programs?
What is the probability that 0, 1, 2, or 3 hypertensives will be identi ed in such sibships if the hypertensive status of 2 siblings in the same family are independent events?
Probability that the entire batch will be rejected?
3 voters are randomly selected (with replacement) from a group of 1,500 people. The group is known to be 20% republican. What is the probability that all of them are republicans?
Find the probability of a type II error, β, given that the true value of the population proportion is 0.72. The sample size is 50 and the significance level is 0.05.
First part of this theorem allows a problem solver to compute probabilities about sample means regardless of whether a population is normally distributed.
If the opinion poll had announced the margin of error for 80% confidence rather than 95% confidence, this margin of error would be?
How have statistics been used inappropriately and what are some examples of when you have seen or heard statistics used inappropriately?
Levels above 200 warrant attention. If 95 teenage boys are examined. How many would you expect to have cholesterol levels greater than 225.
If someone had x=2 job changes, what does the least squares line predict for y, the annual salary?
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