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There is bivariate regression and multiple regression. Provide a business example that you can apply regression to. State the null and alternative hypothesis using the appropriate phrasing for the type of regression chosen.
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
Roberta scored in the 85th percentile on a standardized test of reading ability. What is Roberta's associated z score?
At the .01 significance level, is there a relationship between job pressure and age?
Construct a time series plot. What type of pattern exists in the data? Compute the exponential smoothing forecasts for a = .2.
Formulate the hypotheses to test to see if the mean of the population is at least 12 ounces.
Determine the probability of exactly one success given Poisson distribution with mean of 2.0.
What will be critical value of chi-square if test is to be performed at 0.025 level? At the 0.05 level?
Confirm that these statements are accurate by finding the geometric mean rate of increase.
Find historical information on the statisticians who developed statistical tests, such as the normal distribution, Student t distribution, Chi-Square distribution
Conduct a two-sample test of means. A study by a bank compared the average savings of customers who were depositors for three years or less with those who had been depositors for more than three years.
If a lot is known to contain 10% defective items, find out the probability that lot will be rejected? Accepted?
Determine the expected value and standard error of the sum of 400 draws?
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