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A college believes that 24% of applicants to that school have parents who have remarried. How large a sample is needed to estimate the true proportion of students who have parents who have remarried to within 3% with 90% confidence?
Statistics and Probability, Statistics
A researcher determines that students study an average of 60 15 (M SD) minutes per week. Assuming these data are normally distributed, what is the z score for students studying 45 minutes per week?
A random sample of 25 values is drawn from a mound-shaped and symmetric distribution. The sample mean is 12 and the sample standard deviation is 2. Use a level of significance of 0.05 to conduct a two-tailed test of the ...
A data firm records a large amount of data. Historically, 1.0% of the pages of data recorded by the firm contain errors. If two hundred pages of data are randomly selected? a. What is the probability that six or more pa ...
What is liquidity and why is liquidity important to the success of a business? Give the Reference
The mean time it takes a technician to resolve a software Issue is 18 minutes with a standard deviation or 4.2 minutes. This information was obtained from a random sample of 10 monitored calls. A sample of 15 monitor cal ...
Folgers has specified that the average amount of coffee that goes into one of their small coffee cans is not to exceed 13.24 ounces. A quality control inspector for Folgers takes a random sample of 16 cans and found the ...
A normal distribution has a mean equal to 45. What is the standard deviation of this normal distribution if 2.5% of the proportion under the curve lies to the right of x = 52.84? (Round your answer to two decimal plac ...
1. Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an ...
Taylor found that 8% of the recipients of loans form a particular mortgage lender default within 3 years. If he takes a random sample of 736 customers who received loans 3 years ago, what is the average number of custome ...
Assume that the significance level is alpha equals α=0.05. Use the given statement and find the? P-value and critical? value(s). The test statistic of z equals = -1.53 is obtained when testing the claim that p= 1/6 P-val ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As