What is a reasonable rage for this situation?

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

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?