lengths of time

  

The lengths of time​ (in years) it took a random sample of 3232 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 5.75.7 years. At alphaαequals=0.020.02​, is there enough evidence to reject the claim that the mean time it takes smokers to quit smoking permanently is 1515 ​years? Complete parts​ (a) through​ (e).   

22.222.2   

19.219.2   

18.318.3   

8.88.8   

18.718.7   

14.914.9   

13.213.2   

11.111.1   

10.310.3   

21.521.5   

16.816.8   

22.522.5   

9.59.5   

13.113.1   

21.721.7   

22.722.7   

18.118.1   

18.818.8   

20.220.2   

21.121.1   

14.814.8   

16.616.6   

8.68.6   

21.221.2   

22.422.4   

10.410.4   

21.221.2   

22.122.1   

10.310.3   

20.420.4   

15.915.9   

16.116.1