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Exercise and healthy bones. Many studies have suggested that there is a link between exercise and healthy bones. Exercise stresses the bones and this causes them to get stronger. One study examined the effect of jumping on the bone density of growing rats.16 There were three treatments: a control with no jumping, a low-jump condition (the jump height was 30 centimeters), and a high-jump condition (60 centimeters). After 8 weeks of 10 jumps per day, 5 days per week, the bone density of the rats (expressed in milligrams per cubic centimeter) was measured. Here are the data:
(a) Make a table giving the sample size, mean, and standard deviation for each group of rats. Is it reasonable to pool the variances?
(b) Run the analysis of variance. Report the F statistic with its degrees of freedom and P-value. What do you conclude?
Obtain and interpret the 40th percentile for the finishing times and part D) find and interpret the eighth decile for the finishing times.
Austin Co. needs to borrow $10 million for the next year to support its U.S. operations. It can borrow U.S. dollars at 7 percent or Japanese yen at 1 percent. It has no other cash flows in Japanese yen. Assume that interest rate parity holds, so t..
the housekeeping services department of ruger clinic a multi-specialty practice in toledo ohio had 100000 in direct
How do you interpret the p-values in a regression output? What does a p-value of .0495 mean? What significance level is this?
A relative risk is a risk of matrimony an outcome statistic
A sample of 30 firms reveals an average of $235 million and a standard deviation of $85 million. Conduct the test at α = 0.05 and α = 0.01. State your conclusions.
define population and sampling unit for selecting a random samplw in each of the following cases hundred voters from a
Let S = {c, h, j, q, t, y} be a sample space of an experiment and let E = {c, h}, F = {c, q, y}, and G = {h, j, t} be events of this experiment. (Enter your answers using roster notation. Enter Ø for the empty set.)
Should trading in the car count as an uncertain event or a future decision? What are the implications for building a requisite model of the current car-purchase decision if trad ing in the car is treated as an uncertain event? As a decision?
A unit for a telecommmunication system is to be designed so that the probability that it fails during a period of five years does not exceed 0.4. the unit is to be made up of (n) effectively identical componants each with an exponential failure di..
Define treatment and error.- Explain the sum-of-squares principle.- What is the main principle behind analysis of variance?
maximizing the profit using lpp.a manufacturer wants to maximize the profit of two products.nbsp product i yields a
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