Cyndi bought an extra large pizza, cut into 12 pieces, for today's meeting of the mystery club. she ate 1/6 of the yesterday afternoon. her brother ate 1/5 of what was left last night. cyndi knows that she needs 8 pieces of pizza for the club meeting. cyndi figure out if she has enough pizza left for the meeting. -and show your work or explain

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?