In the equation x^2 mx n = 0, m and n are integers. the only possible value for x is –3. what is the value of m ?
a. 3
b. –3
c. 6
d. –6
e. 9

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?