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A random sample of size 100 is to be taken from a population that has a proportion equal to 0.35. The sample proportion will be used to estimate the population proportion.
a. Calculate the probability that the sample proportion will be within \pm0.05 of the population proportion.
b. Calculate the probability that the sample proportion will be within \pm1 standard error of the population proportion.
c. Calculate the probability that the sample proportion will be within \pm0.10 of the population proportion.
Name the inferential statistical test that would be used for the method of training and why?
Find the percent of a standard Normal model found in the given region. Round to the nearest hundredth of a percent.
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.
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A random sample of 60 days shows that the mean daily number of gallons sold is 10.00. What is the point estimate of the population mean?
If you select a random sample of 16 customers: what is the probability that the mean time spent per customer is at least 3 minutes?
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a total of 300 participants are selected for a study of risk factors for cardiovascular disease. at baseline study
Suppose 70% of kids who visit a doctor have a fever, and 25% of kids witha fever have sore throats. What's the probability that a kid who goes to the doctor has a fever and a sore throat?
For its validity, all hypothesis testing depends heavily on the assumption that the sample that is used was drawn using probability sampling techniques.
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