Rachel has $100 in her savings account and deposits an additional $25 per week. joanna has $350 in her account and is saving $5 per week. after how many weeks will the two girls have the same amount of money? 10 11 12 13

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?