Score: 2 of 4 pts 10 of 16 (14 complete) HW Score: 36 58%, 14.63 of 40 pts 7.2.3

Question

Score: 2 of 4 pts 10 of 16 (14 complete) HW Score: 36 58%, 14.63 of 40 pts 7.2.35-T E Question Help is there enough evidence to reject the claim that The lengths of t me in years it took a random sample of 32 former smokers to quit smoking permanently are listed Assume the population standard deviation is 6.8 years At : 0 01 the mean time it takes smokers to quit smoking permanently is 14 years? Complete parts (a) through (e). 14.7 16.5 17.5 172 15.6 21.188 17.3 19.1 19.3 16.2 19.3 22.6 15.9 10.3 19.3 20.4 9.3 13.4 17.1 17.9 13.2 17.1 18.4 11.1 15.3 209 14.9 10.8 22.3 144 14.7 (b) Identify the standardized test statistic. Use technology. z-1.92 (Round to two decimal places as needed.) -(cFind the P-value. Use technology P(Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer

Explanation / Answer

From part a),

z = 1.92

Also this is a two tailed test.

Hence,

p - Value = 2*P(z > 1.92) = 2*0.0274 = 0.055

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