Question: 13.12 Job satisfaction; find the P-value. The P-value in Example 13.9 is the probahility (taking the null hypothesis /t = 0 to be true) that

13.12 Job satisfaction; find the P-value. The P-value in Example 13.9 is the probahility

(taking the null hypothesis /t = 0 to be true) that x takes a value at least as far from 0 as 17.

(a) What is the sampling distribution of x when /x = 01 (Remember that the popula tion standard deviation is cr = 60.) This distribution appears in Figure 13.6.

(b) Do a Normal probability calculation to find the P -value. Your result should agree with Example 13.9 up to roundoff error.

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