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A video arcade owner believes that the average age of his customers is 12 with a standard deviation of 1.5 years. A sample of 36 customers had an average age of 12.5 years. The test value would be -2.00.
Statistics and Probability, Statistics
A company making refrigerators strives for the internal temperature to have a mean of 37.5 degrees with a standard deviation of 0.6 degrees, based on samples of 100. A sample of 100 refrigerators have an average temperat ...
A standard? 52-card deck of cards is shuffled and then a hand of 8 cards is dealt from the deck. How many different outcomes are possible that have exactly 3 ?pairs, and all other cards of different? ranks?
Heights of women follow a normal distribution with mean μ=63.6 inches and standard deviation of σ=2.5 inches. Suppose random samples of 10 women are chosen and their mean height calculated. Please calculate the mean and ...
Waterton Lakes National Park in Alberta has 6 trails that reach the icefields. If a hiker wishes to reach the icefields in 3 different ways during a visit, how many different possibilities would there be?
Please help me study for a test by answering this question. A stock is just paid a dividend of $0.91 and is growing at a constant rate of 10 percent per year. If the required rate of return is 15 percent, what is the sto ...
Researchers randomly assigned 25 beginning students of Russian to begin speaking practice immediately and another 25 to delay speaking for 4 weeks. At the end of the semester both groups took a standard test of comprehen ...
The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.02 level that the drug stays in the system for more than 339 minutes. After performing a hypothesis test, sh ...
Plastic sheets made by a machine are periodically monitored for fluctuations in thickness. If the true standard deviation in thickness exceeds 2.0 millimeters, there is cause for concern about product quality. Past exper ...
Interested in learning more about its fans, the marketing office of the Arena Football League (AFL) conducted a survey at one of its games. The survey had 952 respondents, 679 males and 273 females. Out of the 952 total ...
Consider the binomial distribution where n = 11 and p = 0.05. Find the mean and standard deviation of this binomial distribution. The customers at a local appliance store are polled as they leave the store. Each is asked ...
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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