QMB3200 Exam A+ Pass

QMB3200 Exam A+ Pass Excel's __________ can be used to construct a crosstabulation. a.COUNTIF function b.PivotTable Report c.Chart Tools d.SUM function - Answer- B The sum of the percent frequencies for all classes will always equal number of items in the study b.100 number of classes - Answer- B Excel's Chart Tools can be used to construct a a. bar chart b. pie chart c. histogram d. All of these can be constructed using Excel's Chart Tools. - Answer- D A tabular summary of a set of data showing the fraction of the total number of items in several nonoverlapping classes is a a. relative frequency distribution. b. frequency distribution. c. frequency. d. cumulative frequency distribution. - Answer- A When using Excel to create a __________ one must edit the chart to remove the gaps between rectangles. a. scatter diagram b. histogram c. bar chart d. pie chart - Answer- B Excel's __________ function can be used to compute the sample correlation coefficient. a.VAR b.MAX c.COVAR d.CORREL - Answer- D Excel's __________ function can be used to compute the sample covariance. a.CORREL b.MAX c. COVARIANCE.S d.VAR - Answer- C Excel provides functions for computing the n d.Excel provides functions for all of these. - Answer- D A(n) __________ is an unusually small or unusually large data value. a. sample statistic b. median c. z-score d. outlier - Answer- D μ is an example of a a. population parameter b. population variance c. mode d. sample statistic - Answer- A Which of the following symbols represents the standard deviation of the population? a.σ 2 b.μ c. x^bar d. σ - Answer- D If a data set has an even number of observations, the median a. is the average value of the two middle items b. can not be determined c. is the average value of the two middle items when all items are arranged in ascending order d. must be equal to the mean - Answer- C The interquartile range is used as a measure of variability to overcome what difficulty of the range? a. the range is influenced too much by extreme values b. the sum of the range variances is zero c. the range is difficult to compute d. the range is negative - Answer- A The most frequently occurring value of a data set is called the a. range b. mode c. mean d. None of the other answers are correct. - Answer- B A mean computed in such a way that each data value is given a weight reflecting its importance is referred to as a. a weighted mean b. an important mean c. a heavy mean d. a trimmed mean - Answer- A An important numerical measure of the shape of a distribution is the a. variance b. correlation coefficient c. skewness d. relative location - Answer- C Excel's __________ function can be used to compute the sample variance. a. MODE b. VAR.S c. MAX d. STDEV - Answer- B The interquartile range is the difference between the a. first and second quartiles b. second and third quartiles c. first and third quartiles d. second and fourth quartiles - Answer- C The empirical rule states that, for data having a bell-shaped distribution, the percentage of data values being within two standard deviations of the mean is approximately a. 95 b. 85 c. 75 d. 65 - Answer- A For data skewed to the left, the skewness is a. negative b. between 0 and .5 c. less than 1 d. positive - Answer- A