Question 8 of 10 (1 point) View problem in a pop-up The U.S. Bureau of Labor and

Question

Question 8 of 10 (1 point) View problem in a pop-up The U.S. Bureau of Labor and Statistics reported that a person between the ages of 18 and 34 has had an average of 9.2 jobs. To se if this average is correet, a researcher selected a sample of 12 workers between the ages of 18 and 34 and asked how many different places they had worked. The results were as follows: 4 3 12 8 3 6 3 2 7 6 6 15 Download data At 0.05, can it be concluded that the mean is 9.2? Use the P-value method. Assume the population is normally distributed. Use a graphing calculator Part 1 out of 4 State the hypotheses and identify the claim with the correct hypothesis. Ho: (select)-[ ] (select) ."' (select) This hypothesis test is a (sele claim not claim NEXT

Explanation / Answer

Given n=2, xbar= 6.25, s=3.91

The test hypothesis is
Ho:=9.2
Ha: not equal to 9.2

The test statistic is

t=(xbar-)/(s/n)

=(6.25-9.2)/(3.91/sqrt(12))

= -2.613580502

Test of = 9.2 vs 9.2

p value t score -2.613580502 and df=11 is

The P-Value is 0.024085.

The result is significant at p < .05.

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