Last week will power wailked 1 4/5 miles per day for each of the 7 days. during the same week, he also jogged 2 3/4 miles per day for 5 days. what was the total number of miles will walked and jogged last week?

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?