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Listed below is the rate of return for one year (reported in %) for a sample of 12 mutual funds that are classified as taxable money market funds.
4.63 4.15 4.76 4.70 4.65 4.52 4.70 5.06 4.42 4.51 4.24 4.52
Using the .05 significance level is it reasonable to conclude that the mean rate of return is more than 4.50%?
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Find out a 95 percent confidence interval for population mean.
You randomly select 40 cans and carefully measure the contents. The sample mean of the cans is 127.9 ounces. Does the machine need to be reset? Explain your reasoning.
Identify a real-life example or application of either the binomial or Poisson distribution. Specify how the conditions for that distribution are met.
What is the probability that separates the bottom 25 percent from the rest of the distribution.
Use the following frequency distribution to determine the midpoint of the second class.
Of the 500 students who responded to a survey about recycling on campus, 350 said they recycle on a regular basis. The sample proportion is ??
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
Use drinking as an excuse for outrageous behavior. including public nudity and dancing on tables. Find the standard error of this estimate. and interpret.
A sample of n = 9 individuals was selected from a normally distributed population with a mean of µ = 25 and a standard deviation σ = 6. A treatment was administered to the sample and, after treatment, the nine individuals produced the following sc..
Find the probability that in a given year,a) Exactly one major hurricane will strike the U.S. mainland
A sample of 25 students enrolled in the university indicates that X (bar) = $285.4 and s = $42.20. Using the 0.05 level of significance, is there evidence that the population mean is above $300?
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