Texts: A survey claims that the average cost of a hotel room in Atlanta is greater than $69.23. To test this claim, a researcher selects a sample of 30 hotel rooms and finds the average cost is $68.43. Assume the population standard deviation is $3.72. At a 0.05 significance level, is there enough evidence to support the claim that the average cost of a hotel room in Atlanta is greater than $69.23?
What is the null hypothesis?
A) Ho: µ ≥ 69.23
B) Ho: µ ≤ 69.23
C) Ho: µ = 69.23
What is the alternative hypothesis?
A) Ha: µ < 69.23
B) Ha: µ > 69.23
C) Ha: µ ≠ 69.23