B) The last time a philanthropic agency requested donations, 4.58% of people responded. From a recent pilot mailing, they wonder if that rate has increased. Complete the alternative hypothesis and determine whether the alternative hypothesis is one-sided or two-sided.

Twelve friends shared 8 small pizza equally.how many pizzas did each person get?

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?