Answer Happy

Question 8 < > a The number of cars arriving per hour at a fast food restaurant's drive-thru is right skewed with an average of 18.2 cars per hour and a standard deviation of 8 cars. i. Can you compute the probability that 18 or fewer cars arrive in a random hour? In other words, Can you find P < 18)? O No, because the population distribution is skewed and the sample is size n = 1. Yes, and it is 0.49. If n = 34, describe the sampling distribution of ii. Center: Plug ini. Spread: SE, Round to 1 decimal place, if necessary. iv. From the given information what can we say about the shape of the sampling distribution of I? The distribution of T is not approximately normal the population is not normal. The distribution of is not approximately normal because the sample size is small, in other words n < 30. The distribtion of ī is approximately normal because the sample size is large, in other words n> 30. It is impossible to know the distribution of of i given the information. The distribution of of ī is approximately normal because np > 10 and n(1 – p) > 10. The distribution of is approximately normal because the population is normal, so the sampling distribution of any size n is approximately normal.