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If a one-sided test indicates that the null hypothesis can be rejected where α = 0.05, would a two-sided test performed on the same data set be significant at the 0.05 level? Why or why not?
Let X be a continuous random variable with mean µ = 10 and variance σ2 = 100/3. Using Chebyshev's Inequality, find an upper bound for the probabilities.
an urn contains 7 red marbles and 3 white marbles. three marbles are drawn from the urn one after the other. find the
The standard deviation of the sample was 1.7 years. Using the 0.95 degree of confidence, what is the confidence interval within which the population mean lies?
suppose that 70 of eligible residents of phelps county will actually vote in an upcoming election. consider randomly
in a simple linear regression based on 30 observations the following information is provided y-6.921.35x and se2.78.
a researcher wishes to conduct a study on the self-esteem levels of adolescents. she believes that male adolescents
tompkins associates reports that the mean clear height for a class a warehouse in the united states is 22 feet. suppose
in a random sample of 70 prospectuses in which sales forecasts were disclosed the mean debt to equity ratio prior to
a. Determine the sample proportion, p, of households with cellular telephones that can be used to access the Internet. b. If the population proportion is 0.40, determine the standard error of the proportion.
Two pain relief drugs are being considered. A random sample of 6 doses of the first drug showed that the average amount of time required before the drug was absorbed into the bloodstream was ??
What is the net income of SouthCo if unit sales are twice the break-even point for a given month?
Use the normal approximation to estimate the probability of at least one disaster in 25 missions.
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