point Facebook friends in a survey of introductory s to study whether there is a
ID: 3051446 • Letter: P
Question
point Facebook friends in a survey of introductory s to study whether there is an association between number of Facebook friends and statistics students, an instructor asked her students to report how mary Facebook thends they had. Suppose that the intent Here are a few summary statistics about the data Sample size Sample mean Sample median Sample SD Women35 594.3 532 309.8 Men 13 405.6 485 228.4 The following is output from carrying out the randomization test using the Mutiple Means applet. IMen-15 007 50 101 D Shuffied Dfferenes in Mediora what regionis) would you shade to depicts the P-value. Hint: Pay close attention to the label on the r-axis. What is the On the histogram above, what region(s) would you shade to depicts the p-value. Hint: Pay close attention to the label on the r-axis. What is the statistic of interest here?) a. A. The region below-47 and the region above 47. D B. The region between 47 and 47. C. The region below #-188.7 and the region above 188.7 D. The region between -188.7 and 188.7. b. Use the information available above to find and report the standardized statistic (involving the median) in this context Standardized statistic involving the medianExplanation / Answer
In the histogram the x axis is that of the medians and not means
The median is given as 532 and 485
The difference is 532-485=47
Hence below -47 and above 47
b)
Standardized statistic using median =x-mean/sigma
=(47-15)/10.96=2.9197=2.92
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.