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The skewness is a measure of asymmetry and it is positive at 0.15 meaning that it is greater than zero which reveals that the tail extends to the right slightly indicating the dist
I was recently buying shoes when the salesperson commented on how large my feet were. After telling him he had lousy sales techniques, I decided to investigate if I really do have
Quota Sampling: in stratified the cost of taking random samples from individual strata is often so expensive that interviewers are simply give quota to be filled from different str
Question: Students in a science class have just received their grades on the first test. The instructor has provided information about the first test grades in some previous c
Your friend Jose is trying to decide whether to buy or lease his next vehicle. He has gathered information about each option but is not sure how to compare the alternatives. Purcha
prof. ya-lu-chan definitions statistices
Obtain the critical value (or values) for a hypothesis test for the mean if you conduct: (a) an upper tail "z" test at the 1% level of significance. (b) a two-tailed "z" test
explain the graphical method of measure of central tendency.
1. A researcher was interested lowering the high school dropout level in his county. He measured the reading level of students entering middle school (based on a standard test) and
Marks(less than)-10,20,30,40,50,60,70,80 Number of students-4,8,25,34,41,46,50,60 Draw a median graph for the followin
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