STA220H1 Study Guide - Final Guide: Simple Random Sample, Interquartile Range, Null Hypothesis

• School: UTSG
• Department: Statistical Sciences
• Course: STA220H1
• Professor: Bethany White

Document Summary

30 sta220 sample final questions (answer key on last page: in order to test the null hypothesis of equal means (alternative hypothesis says they are unequal), two simple random samples are obtained. In sample 1, the mean and standard deviation are 10 and 6 respectively. In sample 2, the mean and standard deviation are 21 and. The data are normally distributed and the true standard deviations of the two populations are equal. The resulting p-value must be: greater than 0. 2, between 0. 19 and 0. 10, between 0. 09 and . 05, between . 049 and . 02, less than 0. 02, consider the smoothed histogram of 200 measurements shown below. Since the sample is large, we should expect the histogram for the sample to be nearly normal. Ii) we will draw a srs (simple random sample) of 100 students from all university of. Toronto students, and measure each person"s cholesterol level.