(solution) statistic

(solution) statistic

statistic Document Preview: What are the boundaries of the class 2.34 – 9.45 ? —————————————————————————– 2- How many people participated in the study? Response to new medication Number of patients No change in symptoms 26 Some relief of symptoms 83 Total relief of symptoms 32 ——————————————————————————————- 3-Given the following data set of grades, what frequency should be entered in the row for the data value “ A+’’ in a non-grouped distribution? B, A+, C-, B+, A+, B, C+,A , A-,B+, A+ C+ ,B- A.2 B.3 C.5 D.13 —————————————————————————————— 4- the average lateness for one of the top airlines companies is 20 minutes. The variance of the lateness measure is calculated as s2=9. An airplane arrived 14 minutes after the started arrival time. Calculate the z-score for this particular airplane’s lateness. z= -3 z= -2 z= 0.25 z=2 ————————————————————————————————– 5- If your score on a GMAT test was at the 87th percentile, what percentage of scores, are at and above yours? 85% 87% 13% 10% —————————————————————————————– 6- What is most misleading about the data representation below ? there is no scaled labeled on the horizontal axis the data is represented in a histogram. The graph is three-dimensional There is no scale labeled on the vertical axis 7- what is the total frequency of the data whose histogram is shown below. A. 32 B. 5 C. 14 D. 0 ———————————————————————————————- 8 – Movie opinion poll: viewers a newly released movie were asked to rate the right movie. The results are shown in the following data table . Calculate the relative frequencies and answer the question below what is the total number of…