QNT 561

QNT 561 Final Exam 2 1. A difference between calculating sample mean and population mean is A. Only in symbols, we use instead of µ and n instead of N B. We divide sum of observations by n - 1 instead of n C. observations are ranked and select middle value for population mean D. There are no differences 2. Which of 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 requi...

QNT 561 Final Exam 4 1) Which of the following measures of central location is affected most by extreme values? A. Mean B. Median C. Mode D. Geometric mean 2) Which level of measurement is required for the median? A. Nominal B. Ordinal C. Interval D. Ratio 3) Which level of measurement is required for the mode? A. Nominal B. Ordinal C. Interval D. Ratio 4) In a set of observations, which measure of central tendency reports the value that occurs most often? A. Mean B. Me...

QNT 561 Final Guide Latest 1. A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. For what values of t will the null hypothesis not be rejected? a) To the left of -1.645 or to the right of 1.645 b) To the left of -1.345 or to the right of 1.345 c) Between -1.761 and 1.761 d) To the left of -1.282 or to the right of 1...

QNT 561 Final Exam 4 1) Which of the following measures of central location is affected most by extreme values? A. Mean B. Median C. Mode D. Geometric mean 2) Which level of measurement is required for the median? A. Nominal B. Ordinal C. Interval D. Ratio 3) Which level of measurement is required for the mode? A. Nominal B. Ordinal C. Interval D. Ratio 4) In a set of observations, which measure of central tendency reports the value that occurs most often? A. Mean B. Me...

QNT 561 Final Exam 2 1. A difference between calculating sample mean and population mean is A. Only in symbols, we use instead of µ and n instead of N B. We divide sum of observations by n - 1 instead of n C. observations are ranked and select middle value for population mean D. There are no differences 2. Which of 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 requi...

QNT 561 Final Guide Latest 1. A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. For what values of t will the null hypothesis not be rejected? a) To the left of -1.645 or to the right of 1.645 b) To the left of -1.345 or to the right of 1.345 c) Between -1.761 and 1.761 d) To the left of -1.282 or to the right of 1...

QNT 561 FINAL EXAM – QUESTION AND ANSWERS • A market researcher is interested in determining the average income for families in San Mateo County, California. To accomplish this, she takes a random sample of 300 families from the county and uses the data gathered from them to estimate the average income for families of the entire county. This process is an example of o Inferential statistics • If x is a binomial random variable with n=10 and p=0.8, what is the probability that x is ...

QNT 561 Final Exam 4

QNT 561 Final Exam 2

QNT 561 Final Guide Latest