Question The commute times for workers in a city are normally distributed with an unknown population mean and standard deviation. If a random sample of 20 workers is taken and […]

Question Suppose the number of dollars spent per week on groceries is normally distributed. If the population standard deviation is 7 dollars, what minimum sample size is needed to be […]

Question The weights, in pounds, of the cats in an animal adoption center are normally distributed. If a random sample of cats is taken and the confidence interval is (7.9,12.7), […]

Question Suppose that the weight, X, in pounds, of a 40-year-old man is a normal random variable with mean 147 and standard deviation 16. Calculate P(120≤X≤153). Round your answer to four […]

Week 5 Assignment: Probability Using the Normal Distribution Question As stated in the previous problem, in a small town, 50% of single family homes have a front porch. 48 single family houses […]

Question Given the plot of normal distributions A and B below, which of the following statements is true? Select all correct answers. Question Annie averages 23 points per basketball game […]

Week 4 Assignment: Distribution with Technology – Excel Question An automobile manufacturer is concerned about the possibility of a fault in the engine of a particular model of one of […]

Question A restaurant gets an average of 12 phone orders in a 2 hour time period. In order to find the probability that the restaurant will get exactly 2 phone […]

Question Identify the parameters p and n in the following binomial distribution scenario. The probability of winning an arcade game is 0.718 and the probability of losing is 0.282. If […]