SUM 28.8 Select the null hypothesis for the statistical test for the population Pearson's correlation. r=-.015 p=-.698 p=0 r=-.309 78.5

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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A student in PSYC 227 class collects data for a class project. She asks 10 classmates to shoot 10 free throws on a standard basketball court and records the number of shots made by each participant
(X). She also has these same participants run an obstacle course and records their time (Y). She wants to statistically evaluate if variables X and Y are related. She computes the sum of squared
deviations for X, the sum of squared deviations for Y, and the sum of cross products between X and Y.
SUM
r= - .309
(x-x)²
3.24
7.84
1.44
10.24
0.04
0.64
3.24
1.44
0.04
0.64
28.8
Select the null hypothesis for the statistical test for the population Pearson's correlation.
r= .015
Op = - .698
Op=0
(Y-Y)²
15.21
0.81
16.81
4.41
9.61
8.41
15.21
0.01
4.41
3.61
78.5
(X-X) (Y-Y)
-7.02
-2.52
-4.92
-6.72
-0.62
-2.32
-7.02
-0.12
-0.42
-1.52
- 33.2
Transcribed Image Text:A student in PSYC 227 class collects data for a class project. She asks 10 classmates to shoot 10 free throws on a standard basketball court and records the number of shots made by each participant (X). She also has these same participants run an obstacle course and records their time (Y). She wants to statistically evaluate if variables X and Y are related. She computes the sum of squared deviations for X, the sum of squared deviations for Y, and the sum of cross products between X and Y. SUM r= - .309 (x-x)² 3.24 7.84 1.44 10.24 0.04 0.64 3.24 1.44 0.04 0.64 28.8 Select the null hypothesis for the statistical test for the population Pearson's correlation. r= .015 Op = - .698 Op=0 (Y-Y)² 15.21 0.81 16.81 4.41 9.61 8.41 15.21 0.01 4.41 3.61 78.5 (X-X) (Y-Y) -7.02 -2.52 -4.92 -6.72 -0.62 -2.32 -7.02 -0.12 -0.42 -1.52 - 33.2
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