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A recent article in The Wall Street Journal reported that the 30-year mortgage rate is now less than 6 percent. A sample of eight small banks in the Midwest revealed the following 30-year rates (in percent):
4.8
5.3
6.5
6.1
5.8
62
5.6
At the .01 significance level, can we conclude that the 30-yeer mortgage rate for small banks is less than 6 percent? Estimate the p-value.
Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance
Write the null and alternative hypotheses you would use to test the following situation.
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
What would that evaluation be and what is the margin of error?
Provide a discussion that supports the assumption that the variance of savings increases with family income.
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Evaluate z statistic for the Wilcoxon rank sum test, standard deviation for the Wilcoxon rank sum test and P-value for the Wilcoxon rank sum test
The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test.
Calculate (rounded to the nearest tenth) The correlation between IQ and Anxiety r =??
What is the minimum sample size needed in order for you to be 95% confident that your estimate is within 5 of µ? Use the value 20 for the population standard deviation of scores on this subsection.
I have computed an analysis of variance for three groups with 10 observations per group. Evaluate the degrees of freedom for the F test
Solve linear program graphically
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