HURRY 30 POINTSSS

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?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss