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Making use of the fact that the chi-square distribution can be approximated with a normal distribution when ν, the number of degrees of freedom, is large, show that for large samples from normal populations is an approximate critical region of size α for testing the null hypothesis σ2 = σ2 0 against the alternative σ2 > . Also construct corresponding critical regions for testing this null hypothesis against the alternatives σ2 and σ2 .
do the calculations. Show all your steps. P(B/A) = P (B1/A1) * P (B2/A2) * P(B3/A3). Evaluate the employer's knowledge of his/her employees.
A random sample of 65 packages yielded a mean of 1.05 lbs and a standard deviation of .23 lbs. What is the 90% Confidence Interval for this problem?
On opening day one season, 10 major league baseball games were played and they lasted the following numbers of minutes. Find the sample variance.
Assume that sigma = 60, choose an alpha level, and perform a hypothesis test to determine whether this is good evidence to conclude that the mean score for all young men is less than 275.
John Doe had no accidents in 2004, but his wile Jane did. What are he probabilities for each of them to be low-risk persons?
an interaction affect that is not significant indicates thata. the influence of one factor is not the same for each
Can the human resource manager conclude, at the 5% significance level, that the job enrichment workshops increase sales consultants' job satisfaction levels? Present your findings to the human resource manager.
suppose the lifetime of a particular appliance follows an exponential distribution with a mean of 10 years. what is the
For following data, find out whether or not right-hemisphere damage results in significantly decreased performance on spatial skills task.
Suppose that the researcher from the previous problem repeated the study of married couples' initials using twice as many participants and obtaining observed frequencies that exactly double the original values. The resulting data are as follows:
An automobile club claims that the average time for a non-stop trip from new york city to Washington, D.C. by automobile is 4.5 hours. A disbelieving driver feels that the claim is incorrect.
a club has 200 members 45 of whom are lawyers 38 of the memebres are liars while 132 are neither lawyers nor liars.
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