10:12 < PSY230-M4-Assignment-SpringA202... Q3b. What would be the null and alternative hypotheses in both words and symbol notations? [1 point total: 0.5 for each hypothesis. Both written form and symbol notation need to be correct to get the 0.5 point for the hypothesis] Symbolic Written Symbol bank for copy & pasting: =3 m Null Alternative H: H: Perform the steps below to get the t statistic for the sample (Round results to the hundredth (2nd place to the right of the decimal) when a result extends beyond that): Q3c. Calculate the mean of the difference scores. [1 point: 0.5 if process is correct but answer is wrong] Q3d. Estimated population standard deviation. [1 point: 0.5 if process is correct but answer is wrong] Q3e. Standard error. [1 point: 0.5 if process is correct but answer is wrong] Q3f. Calculated t statistic. [1 point: 0.5 if process is correct but answer is wrong] With the calculated t statistic, perform the following steps to conclude the hypothesis test. Q3g. Critical & value [0.5 point] Q3h. Make a decision about the hypothesis test, stating explicitly "reject" or "fail to reject" accordingly. [0.5 point] Q3i. Calculate the standardized effect size of this hypothesis test. [1 point: 0.5 if process is correct but answer is wrong] All course content and materials, including this assignment and all other items published within the Canvas course shell, are copyrighted materials and students may not share outside the class, upload to online websites not approved by the instructor, sell, or distribute course content or notes taken during the conduct of the course (see ACD 304-06, "Commercial Note Taking Services" and ABOR Policy 5-308 F.14 for more information). 0= lopp 1000 3 Dashboard Calendar To Do Notifications Inbox < 10:12 PSY230-M4-Data-SpringA2023-1.xlsx Q1 Q2 Q3 Subject ID Age 70 1 74 Age 80 70 2 72 3 73 4 68 5 74 6 71 7 67 88 69 9 68 10 72 76783OSPER 71 69 65 70 70 3 lopp 0= 1000 Dashboard Calendar To Do Notifications Inbox 10:12 < PSY230-M4-Assignment-SpringA202... Q3. Paired-samples t test (8 points) In a cognitive psychology experiment, the researcher is interested in whether encoding condition has an effect on memory for a list of words. She recruits 12 subjects to participate in the experiment. Each subject comes to the lab twice to be tested in two different encoding conditions and their memory performance scores are listed below. The researcher would like to leave the hypothesis non- directional without predicting which encoding condition would lead to better memory, and she sets the significance level at a = .05 for a two-tailed test. Subject ID Encoding A Encoding B 1 177 179 2 189 193 3 185 188 4 178 176 5 181 178 6 186 184 7 193 191 8 192 187 9 187 182 10 182 178 11 179 176 12 188 184 Q3a. Identify the dependent variable (this is the outcome measure) and the independent variable (this is what differentiates the two groups of data points being compared). [1 point total: 0.5 for DV, 0.5 for IV] Q3b. What would be the null and alternative hypotheses in both words and symbol notations? [1 point total: 0.5 for each hypothesis. Both written form and symbol notation need to be correct to get the 0.5 point for the hypothesis] Symbolic Written Symbol bank for copy & pasting: =3 m Null Alternative H: H: Perform the steps below to get the t statistic for the sample (Round results to the hundredth (2nd place to the right of the decimal) when a result extends beyond that): Q3c. Calculate the mean of the difference scores. [1 point: 0.5 if process is correct but answer is wrong] Q3d. Estimated population standard deviation. [1 point: 0.5 if process is correct but answer is wrong] 3 0=- lopp 1000 Dashboard Calendar To Do Notifications Inbox 10:12 < PSY230-M4-Data-SpringA2023-1.xlsx Q1 Q2 Q3 Subject ID Encoding Encoding B 1 177 179 2 189 193 3 185 188 4 178 176 5 181 178 6 186 184 7 193 191 8 192 187 9 187 182 10 182 178 11 179 176 12 188 184 3 0= lopp 1000 Dashboard Calendar To Do Notifications Inbox 10:12 < PSY230-M4-Data-SpringA2023-1.xlsx Q1 Q2 Q3 Japanese Ca MPG 1 29 2 32 3 30 4 28 5 27 6 34 7 30 8 35 9 32 10 36 3 0= lopp 1000 Dashboard Calendar To Do Notifications Inbox