Cindy works in a cake shop and earns $42 per day. she earns an extra $4 for each cake she sells. if cindy wants to earn at least $50 per day, which inequality shows the minimum number of cakes, n, that she should sell? 42 + 4n ≥ 50, so n ≥ 2 42 + 4n ≤ 50, so n ≤ 2 42 + 4n ≥ 50, so n ≥ 4 42 + 4n ≤ 50, so n ≤ 4

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the