ASHORD BUS 308/BUS308 WEEK 1 QUIZ (COMPLETE SOLUTION) - 92014

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1. Question : When using the Chebyshev's theorem to obtain the bounds for 99.73 percent of the values in a population, the interval generally will be _______ the interval obtained for the same percentage if normal distribution is assumed (empirical rule). Student Answer: narrower than wider than the same as Points Received: 1 of 1 2. Question : An example of a qualitative variable is the mileage of a car. Student Answer: True False Points Received: 1 of 1 3. Question : By taking a systematic sample, in which we select every 100th shopper arriving at a specific store, we are approximating a random sample of shoppers. Student Answer: True False Points Received: 1 of 1 4. Question : All of the following are measures of central tendency except the Student Answer: range mode mean median Points Received: 1 of 1 5. Question : Measurements from a population are called Student Answer: statistics. observations. variables. inferences. Points Received: 1 of 1 6. Question : A normal population has 99.73 percent of the population measurements within ___ standard deviations of the mean. Student Answer: one two three four Points Received: 1 of 1 7. Question : When a population is skewed to the left or right with a very long tail, what is the best measure to use for central tendency. Student Answer: Population mean Population mode Population median Population standard deviation Points Received: 1 of 1 8. Question : All of the following are measures of central tendency except the Student Answer: range mode mean median Points Received: 1 of 1 9. Question : Which percentile describes the first quartile Q1? Student Answer: 25th 50th 75th 100th Points Received: 1 of 1 Comments: 10. Question : Any characteristic of a population unit is called a Student Answer: measurement. sample. observation. variable. Points Received: 1 of 1
Solution Description

1. Question : When using the Chebyshev's theorem to obtain the bounds for 99.73 percent of the values in a population, the interval generally will be _______ the interval obtained for the same percentage if normal distribution is assumed (empirical rule).

Student Answer: narrower than

wider than

the same as

Points Received: 1 of 1

2. Question : An example of a qualitative v

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