Set up the iterated integral for evaluating modifyingbelow integral from nothing to nothing integral from nothing to nothing integral from nothing to nothing with upper d f (r comma theta comma z )dz r dr d theta∫∫∫df(r,θ,z)dz r dr dθ over the region d, where d is the solid right cylinder whose base is a region in the xy-plane that lies inside the cardioid r equals 2 plus 2 cosine thetar=2+2cosθ and outside the circle r equals 2r=2, and whose top lies in the plane z equals 6z=6.

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?