the PSPP output for the variable, "Indicate how bad versus good you think later start times are for schools in LAUSD (after 9am) by choosing a number between 1 and 7."

Please answer the following questions using this output, labeling your answers with the correct letter (type in your answers). HINT: It is not necessary to calculate most of the values below, as they are printed and labeled on the output.

a. What is the valid sample size? Hint: do not include missing data.

b. What are the mean, median, and mode?

c. What are the variance and standard deviation

FREQUENCIES FREQUENCIES VARIABLES= BadGd /FORMAT=AVALUE TABLE /STATISTICS=MEAN VARIANCE MODE MEDIAN. Bad Good Value Label Value Frequency Percent Valid Percent Cum Percent 1.00 8.62 9.09 9.09 2.00 6.90 7.27 16.36 3.00 8.62 9.09 25-45 4.00 20.69 21.82 47.27 5.00 7 12.07 12.73 60.00 6.00 8 13.79 14.55 74-55 7.00 14 24.14 25-45 100.00 3 5.17 Missing Total 58 100.0 100.0 Bad Good N Valid 55 Missing 3 Mean 4.67 Mode 7.00 Variance 3.82 Percentiles 50 (Median) 5.00