An electronics store sells specialty headphones for $100. They usually sell 5
pairs per day and purchase 150 pairs from their suppliers per month.
According to the law of demand, which outcome would be most likely if the
store reduced the price to $90?
A. The store would sell 3 pairs per day.
B. The store would purchase 100 pairs per month.
C. The store would purchase 175 pairs per month.
D. The store would sell 7 pairs per day.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?