Find the critical value or values of ² based on the given information. H₁: 8.0 n = 10 = 0.01

Question 1 options:

a)

23.209

b)	2.088, 21.666

c)	1.735, 23.589

d)

21.666

Question 2 (5 points)

Use the given degree of confidence and sample data to construct a confidence interval for the population mean . Assume that the population has a normal distribution. A sociologist develops a test to measure attitudes towards public transportation, and 27 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the mean score of all such subjects.

Question 2 options:

a)	74.6 < < 77.8

b)	67.7 < < 84.7

c)	64.2 < < 88.2

d)	69.2 < < 83.2