The data of a random temperatures in Los Angeles is given below.

60	70	75	55	80	55
65	40	80	70	80	95
120	90	75	85	80	60

1. Assume that temperatures of Los Angeles are normally distributed. Use 0.05 significance level to test the claim that the average temperature in Los Angeles is less than 80.
2. Construct a 95% confidence interval with the data given above.
3. Does the result of part 1 coincide with the result of part 2? Explain.