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Find the value of the standard normal random variable z, called z0 such that:
a) P(z < z0) = 0.9427, z0 = ______
b) P(-z0 < z < z0) = 0.9518, z0 = ______
c) P(-z0 < z < z0) = 0.363, z0 = ______
d) P(z > z0) = 0.0976, z0 = ______
The random variable X has which of the following probability distributions and What is the probability that no student wins
Mean and standard deviation are 584.6 and 34.28
How closely is the height of an individual related to the weight? Partial regression output for a sample of 92 individuals is below.
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
How large should n be so that the standard deviation of is no more than 0.01 and sampling distribution
Assume that the length X in minutes of a regular season NBA game is normally Distributed with X~N (µ X , σ 2 X );
Compute the sample variance and the sample standard deviation for these data (to 2 decimals).
I have fit a line to data representing cholesterol readings for 28 individuals starting a cholesterol reducing drug. The computer provides the following output, The degrees of freedom for the t test for the slope are
Real estate agents always say "location, location, location" is the most important thing in buying a house. We want to know if the sales prices of homes in two neighborhoods are similar. A random sample is taken from each neighborhood. The prices ..
A radio station wants to know if residents in their area are in favor of a proposed tax increase. They invite listeners to call in to respond to the poll. 645 of the 800 who responded were against the tax.
If you have a statistical package that computes binomial probabilities, find the probability that at least five funds outperform the market in all 10 years.
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
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