Business Statistics (Hypothesis Testing)
Business Statistics (Hypothesis Testing)
(The answer is on Chegg)
The owner of a large car dealership believes that the financial crisis decreased the number of customers visiting her dealership. The dealership has historically had 800 customers per day. The owner takes a sample of 100 days and finds the average number of customers visiting the dealership per day was 750. Assume that the population standard deviation is 350. To determine whether there has been a decrease in the average number of customers visiting the dealership daily, the appropriate hypotheses are
A. H0: µ ≤ 800, HA: µ > 800
B. H0: x ≤ 800, HA: x > 800
C. H0: µ ≥ 800, HA: µ < 800
D. H0: x ≥ 800, HA: x < 800
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