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a) Suppose you went to the Bureau of Labor Statistics web site and found several predictors of your salary. State three possible predictors and a simulated multilinear regression equation along with their p-values. What does your p-values tell you about your predictors?
b) How does multilinear regression analysis apply to your profession? Specify the dependent value and the set of predictors. Where would you get the data?
Using this information, calculate Beta risk (probability of Type II error) if the true population mean really is 77.
Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
If you select a random sample of 100 sessions, what is the probability that the sample mean is between 7.8 and 8.2 minutes?
For a normal population with u. = 80 and a = 20 which of the following samples is least likely to be obtained?
Can one conclude at a level of significance of .01 that the new ball has improved his game?
Utilizing jacobian method finding the probability density function. Utilizing either the CDF method or Jacobian method illustrate the probability density function of Y is given.
Construct a 95% confidence interval estimate of their mean weight.
Does this sample give sufficient evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of general population? Use two-tailed test with α = .01.
Assume that the mean useful life of a particular lightbulb is 2,000 hours and is normally distributed with a standard deviation of 300 hours. Determine the percentage of lightbulbs that will last 2,300 hours or longer.
What fraction of the calls last between 4.2 and 5 minutes?
Continuous random variable is uniformly distributed between a and b. The probability density function between a and b is.
Test at 5% significance level null hypothesis that population mean is 40 hours against alternative that it is higher.
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