MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question (4 points each). [

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Multiple Choice Choose The One Alternative That Best Completes The Statement Or Answers The Question 4 Points Each 1 (44.41 KiB) Viewed 20 times

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question (4 points each). [Enter response in the box provided]. 6. A local Verizon store tracks customer traffic during the lunch hour (12 noon to 1 pm) when activity is high. They have found that the average number of customers arriving during that period is 21. The probability distribution that would describe the variable of the elapsed times between customers during that hour is called: A) exponential distribution B) continuous distribution. D) Poisson distribution C) uniform distribution 7. The transportation manager for the State of Florida has determined that the time between. arrivals at a toll booth on the Florida Turnpike is exponentially distributed with A = 15 cars per minute. Based on this, the average time between arrivals is: B) 4 seconds. A) 15 minutes. C) 0.15 minutes. D) 15 seconds. 8. In a standard normal distribution, the probability P(0.75<2<1.75) is the same as: A) P(0 <<175)-P(0<z<0.75) B) P(0<2<1.00) C) P(0<2<1.75) + P(0<z<0.75) D) P(0 <z<0.75) - P(0<2<1.75) 9. The Olsen Agricultural Company has determined that the weight of hay bales is normally distributed with a mean equal to 69 pounds and a standard deviation equal to 9 pounds. Based on this, what is the mean of the sampling distribution for if the sample size is n = 36? A) 9 C) 36 B) Between 60 and 78 D) 69 10. Suppose it is known that the income distribution in a particular region is right-skewed and bi- modal. If bank economists are interested in estimating the mean income, which of the following is true? A) Provided that the sample size is sufficiently large, the sampling distribution for will be approximately normal with a mean equal to the population mean that they wish to estimate. B) The sampling distribution will also be right-skewed for large sample sizes. C) The standard deviation of the sampling distribution for will be proportionally larger than the population standard deviation, depending on the size of the sample. D) The sampling distribution will be left-skewed. Page 2 of 4