I do not understand T-Test.

AutoSave \"3 Copy of Module 4 Lab Assignment 4 Summer ll 2020 Home Insert Draw Design Layout References Mailings Review View 9 Tell me '3 Share E Comments [an v X Times New.\" v 10 v AA AV Aa v A) i: v V; v l Tl A Bb( b d I v '7 v [E] 3 . AaBchDdEe AaBchDt AaBchDdEz 3 A33 cw Er > LI} Paste B I U V ab x x2 A V I V A V +5 V Ol V No Spacing Heading1 Headingz Title Subtitle Styles Dictate Sensitivity g z # Pane Independent Samples T-test use SPSS software to generate outputs and interpret and explain ttest techniques within the 3 different types of t-tests. 1. An investigator predicts that students taking an achievement test in the morning will perform differently than students taking the same test in the aernnon. Eight students are assigned to take the test in the morning and 8 students are assigned to take the test in the afternoon. Run an independent samples t-test and summarize ndings using an alpha level of .05, two-tailed. Also W a bar graph to graphically represent your results. Morning Group: 25, 31, 44, 36, 29, 42, 39, 41 Aernoon Group: 22, 25, 24, 27, 33, 28, 31, 34 2. An investigator theorizes that people who participate in a regular program of exercise will have lower levels of anxiety than people who do not participate in a regular program of exercise. To test this idea the investigator randomly assigns 12 subjects to an exercise program for 10 weeks and 12 subjects to a non-exercise comparison group. Lower anxiety scores reect lower levels of anxiety. Please test the investigator's theory using an alpha level of .05, two tailed. Exercise Group: 18, 23, 21, 19, 17, 16, 20, 25, 18, 19, 23, 21 INo-Exercise Group: 26, 28, 25, 24, 31, 29, 27, 23, 27, 25, 23, 23 Page 1 OH 221 words U3 English (United States) . . Focus EB _:_= g __+120%