The number y of duckweed fronds in a pond after t days is y=a(1230.25)^t16, where a is the initial number of fronds. By what percent does the duckweed increase each day? Round your answer to the nearest whole number.

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?