A coffee shop fills its 10 fluid ounce cups, but tries to come up a bit short so that customers don’t spill hot coffee on themselves. The cups are sold as having 9.5 fluid ounces. What statistical strategy would allow them to see if this method is being implemented correctly? Group of answer choices

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?