Which sequences are arithmetic? Select three options.

A) –8.6, –5.0, –1.4, 2.2, 5.8, …

B) 2, –2.2, 2.42, –2.662, 2.9282, …

C) 5, 1, –3, –7, –11, … –3, 3, 9, 15, 21, …

D) –6.2, –3.1, –1.55, –0.775, –0.3875, …

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?