QNT 561 Final Exam(Questions And Answers)

QNT 561 Final Exam(Questions And Answers)1. A difference between calculating the sample mean & the population mean is A. Only in the symbols, we use instead of µ & n instead of N B. We divide the sum of the observations by n - 1 instead of n C. The observations are ranked & select the middle value for the population mean D. There are no differences 2. Which of the following measures of central location is affected most by extreme values? A. Median B. Mean C. Mode D. Geometric mean 3. Which level of measurement is required for the median? A. Nominal B. Ordinal C. Interval D. Ratio 4. In which of the following distributions is the probability of a success usually small? A. Binomial B. Poisson C. Hyper geometric D. All distribution 5. Which of the following is not a requirement of a probability distribution? A. Equally likely probability of a success B. Sum of the possible outcomes is 1.00 C. The outcomes are mutually exclusive D. The probability of each outcome is between 0 & 1 6. Which of the following is not a requirement of a binomial distribution? A. A constant probability of success B. Only two possible outcomes C. A fixed number of trails D. Equally likely outcomes 7. A sample A. Is a part of the population B. Has more than 30 observations C. Is usually identified as N D. All of the above 8. The difference between the sample mean & the population mean is called the A. Population mean.