Select the correct answer. Which function does this graph represent? A. f(x) = 3(x + 1)2 + 2 B. f(x) = -3(x + 1)2 + 2 C. f(x) = -3(x + 1)2 − 2 D. f(x) = 3(x − 1)2 + 2

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?