STAT 100 Midterm: STAT100 ALL-SECTIONS SPRING2001 0000 MID EXAM 5

• School: University of Maryland
• Department: Statistics and Probability
• Course: STAT 100
• Professor: All

Document Summary

You may use one page of notes (writing/xeroxing allowed both sides). Di erent parts of a problem have equal weight unless otherwise indicated. Put a box around the nal answer to a question. ***note: when you are asked for a con dence interval, do not take the time to evaluate numbers on your calculator. Just write out the appropriate formula, with all appropriate numbers substituted: a random sample of 350 american families found that 213 families owned a home com- puter. Establish a 98% con dence interval for the proportion of american families owning a home computer: the following summary statistics are recorded for independent samples from two popula- tions: Observed hours of pain relief are recorded for 55 patients given drug a and 58 patients given drug b. Run the appropriate hypothesis test at level of signi cance = . 05 . **************there are more problems on the back side***************