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An article recommended the following estimated regression equation for relating y = VO2max (L/min, a measure of cardiorespiratory fitness) to the predictors x1 = gender (female = 0, male = 1), x2 = weight (lb), x3 = 1-mile walk time (min), and x4 = heart rate at the end of the walk (beats/min):
y = 3.5959 + 0.6566x1 + 0.0096x2 - 0.0996x3 - 0.0080x4
I can interpret the estimation coefficients as it asks, calculate the residual of an observation given values and a different observation (residual -0.64), and calculate R2 guveb SSE = 30.1533 and SST = 102.3522.
State the rejection region and compute the test statistic value. Use ? = 0.05. Round your answers to two decimal places.
rejection region: f ?
test statistic: f =
hypothesis test for difference between two population variances.a real estate agent in the coastal area of georgia
suppose that a random sample of 41 state college students is asked to measure the length of their right foot in
In standardized form, the normal distribution a) Has a mean of 0 and a standard deviation of 1 b) Has a mean of 1 and a variance of 0 c) Has an area equal to 0.5 d) Cannot be used to approximate discrete probability distributions
Withdrawals of $400 for 3 years. Find the balance of her account just after the last withdrawal (on february 1,2001)if the monthly interest rate is 6%.
Using thesedata, perform a simple regression analysis to predict the price of a digital camera using the number of effective megapixels. Interpret the slope term and state whether it is consistent with the buyer's prior belief.
Assume that, among residents of a large Florida subdivision, the population mean age is 65 years old, the population standard deviation is 2 years, and that the age variable is distributed normally.
Researchers at Pharm-X, a pharmaceutical company, are testing and comparing the effects of Drug A and Drug B on participants' allergies. The researchers are using a double-blind procedure to conduct their test.
Define the variable - the weight in pounds - it is a dependent variable. Find the mean, median, mode, variance, and standard deviation for your data.
According to TNS Intersearch, 69% of wireless web users use it primarily for receiving and sending e-mail. Suppose that three wireless web users are selected at random. What is the probability that all of them use it primarily for e-mail?
Among the half that had surgery, 80% showed improvement after three months, but only 54% of those who used the wrist splints improved. what's the standard error of the difference in the two proportions?
a sample of 16 items provides a sample standard deviation of 9.5. test the following hypotheses using a .05.? 0 s 2
In a clinical study of an allergy drug, 108 of the 203 subjects reported experiencing significant relief from their symptoms. Using a significance level of .01, test the claim that more than half of all those using the drug experienced relief.
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