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A sample of 32 money-market mutual funds was chosen on January 1, 2016, and the average annual rate of return over the past 30 days was found to be 3.23 percent, and the sample standard deviation was 0.51 percent. A year earlier, a sample of 38 money-market funds showed an average rate of return of 4.36 percent, and the sample standard deviation was 0.84 percent. Is it reasonable to conclude (at = 0.05) that money-market interest rates declined during 2015?
Using language that can be understood by someone who knows no statistics, write a paragraph explaining what a P-value of less than 0.01 means in the context.
A standard deviation of 7.3 years. What is the 95% confidence interval estimate for the average number of years served by all Supreme Court justices?
You don`t need to simplify answers for this problem, complicated fractions are OK. Two boxes have colored balls in them. Box A has 3 blue and 7 red balls in it, box B has 1 blue and 1 red.
The probability that a baseball player hits a home run is greater than the probability that he gets a successful hit.
A person gets a score of 52 on a test with a mean of 56 and standard deviation of 4. What would the person's score be on a scale with a mean of 100 and standard deviation of 15?
Raccoons are identified by gender and then weighed from three different neighborhoods. Using a 0.05 significance level what can you conclude from the following Two-Way ANOVA results?
Suppose X is a discrete random variable with mean mX and variance s2X. Let Y be a linear function of X, such that Y = aX + b, where a and b are constants. Find the mean and variance of Y in terms of mX and s2X.
Find the debt-to-equity ratio for the firm. (use Total Liabilities for debt)
1 two researchers are interested in examining the relationship between level of education and level of volunteerism
Given that among the four sports included here, baseball is the only sport in which the home team can modify field dimensions to favor its own players, does it appear that baseball teams are effective in using this advantage?
suppose that pa 0.4 and pacapb 0.12a find pbab are the events a and b mutually exclusive?if pb 0.3 are events a and
What is the probability that none of the people are Independent and what is the probability that fewer than five people are independent?
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