PY Stats 211 Chapter 15 Test With Solution

PY Stats 211 C hapte r 15 Te st With Sol ution A researcher measures the correlation between self-esteem (high, low) and physical fitness scores among school athletes. In the study, 12 participants reported high self-esteem, and 12 reported low. If S(r) = 9.06 and M(y1)-M(y2) = 11, then what is the value of the correlation coefficient? 0.61 0.30 0.39 not enough info - ANSWER 0.61 (#41) A researcher measures the correlation between the frequency of self-esteem (high, low) and health status (lean/healthy, overweight/obese). Based on the frequencies for each nominal category given below, what is the value of the phi correlation coefficient? 0.08 0.28 0.52 0.56 - ANSWER 0.28 (#42) A researcher computes the following phi correlation coefficient r (phi) = 0.42. If the sample size was 20, then what is the decision for this correlation test? - ANSWER Retain the null hypothesis (#43) A researcher determines that x^2 =3.76 to test for significance for a phi correlation coefficient. What was the decision for this phi correlation test? - ANSWER Retain the null hypothesis (#45) IF X^2 =3.84 and n=36, then what is the value of r? 0.11 0.16 0.33 0.36 - ANSWER 0.33 (#50) Select the description below that identifies the following correlation: r=.28, p < .01 - ANSWER -the correlation is positive -the correlation is statistically significant -the coefficient of determination is .08 ALL OF THE ABOVE (#54) The correlation coefficient varies between 0 and 1 and can never be