Finding test statistics and its two-sided p-value

Reference no: EM1319680

Q1) Suppose we know that differences in job satisfaction scores follow Normal distribution with standard deviation σ=60. Sample of 75 workers had mean response x= 17.If there is no difference in job satisfaction between 2 work environments, mean is μ=0. This is H₀. Alternative hypothesis says merely "there is a difference," H_a: μ ≠ 0. Find out the test statistics and its two-sided P-value. Do data give good evidence that population mean is not zero?

Following sample observations were randomly selected.

X:	5	3	6	3	4	4	6	8
Y:	13	15	7	12	13	11	9	5

Find out regression equation.

Find out value of Y' when X is 7.

Reference no: EM1319680

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