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A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If 49 different applicants are randomly selected find the probability that their mean is above 215.
What is the p value associated with your sample mean wait and what conclusions can you draw from these results
Compute the value of z and state your decision regarding the null hypothesis.
rolling a pair of fair die 10 times and recording the number of times we get a 7. what is the probability of rolling
suppose that a group of 1000 orange trees is laid out in 50 rows of 20 trees each. to determine the sugar content of
a company is considering producing some new gameboy electronic games. based on past records management believes that
Calculate the Coefficient of Skewness and the Coefficient of Variation for time spent working on QM.
using one mean t test to determine whether or not to support the claim.the t-test ia another hypothesis test that works
Provide a 99% confidence interval for the population proportion of college students who worked to pay for tuition and living expenses.
estimating the combined mean values for the given data.one sample of n 4 scores has a mean of m 10 and a second
A random sample of 51 observations was selected from a normally distributed population. The sample mean was xbar = 88.6, and the sample variance was s2 = 38.2.
a random sample of 16 communities in western kansas gave the following information for the rate of hay fever per 1000
How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 0.04 with 98% confidence?
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