A cellular phone service provider believes that there is negative correlation between the minutes used by its customers and the age of the customer.
To test this, the following would be the appropriate null and alternative hypotheses:
H0 : = 0.0
Ha : 0.0
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Q. 2Contingency analysis helps to make decisions when multiple proportions are involved.
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Q. 3Residuals are calculated by e = y - .
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Q. 4The sampling distribution for a goodness-of-fit test is the Poisson distribution.
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Q. 5In a multiple regression model, each regression slope coefficient measures the average change in the dependent variable for a one-unit change in the independent variable, all other variables held constant.
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Q. 6A correlation coefficient computed from a sample of data values selected from a population is called a statistic and is subject to sampling error.
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