Question 10 A restaurant tracks the proportion of customers…

Question 10 A restaurant tracks the proportion of customers who order dessert after their meal. Out of the last 1,200 customers, 360 ordered dessert. Which of the following values of p, the long-run proportion of customers ordering dessert, are included in a 95% confidence interval? I. p = 0.28 II. p = 0.3 III. p = 0.34

Question 4 A company manufactures light bulbs that have a li…

Question 4 A company manufactures light bulbs that have a lifespan that is normally distributed with a mean (μ) of 1200 hours and a standard deviation (σ) of 75 hours. What is the probability that a randomly sampled light bulb lasts between 1100 and 1250 hours?