Question 8 1 pts A repeated-measures study and an independent-samples study both produced a t statistic with df = 12. How many individuals participated in each study? 14 for repeated-measures and 14 for independent-measures 13 for repeated-measures and 13 for independent-measures 14 for repeated-measures and 13 for independent-measures 13 for repeated-measures and 14 for independent-measuresQuestion 14 1 pts An independent samples t-test was performed in SPSS, and a 95% CI of -.82 to .93 was reported. This indicates that the results were statistically significant. True FalseQuestion 23 1 pts Suppose a researcher uses data from 30 people to determine the correlation between anxiety (X) and cognitive functioning (Y). Suppose the range of the anxiety scores in the original sample of 30 people was from 20 to 40. If the regression equation works out to Y-hat = 50 + 4X, what value of cognitive functioning would you estimate for a new person whose anxiety score is 38? O 310 202 None of these answers is correct. 170Question 13 1 pts Which of the following pairs of variables should produce a correlation near zero. O heart disease and mortality risk O amount of sugar intake and blood glucose levels amount of coffee consumption and IQ O hours spent studying and success in schoolQuestion 21 1 pts Ali wants to compare male and female university students on number of hours of sleep per week. If this is measured as a ratio variable, what test should Ali use to determine if there is a difference between the two groups of students in number of hours of sleep per week? O chi-square test of independence paired-samples t test ANOVA independent samples t testQuestion 2 4 pts A study is conducted comparing three different prenatal care programs among women at high risk for preterm delivery. The programs differ in intensity of medical interventions. Women who meet the criteria for high risk of preterm delivery are asked to participate in the study and are randomly assigned to one of the three prenatal care programs. At the time of delivery, they are classified as preterm or term delivery. Based on the following data, is there a relationship between the prenatal care programs and preterm delivery? Use the following data to run the appropriate test (by hand) at the 5% level of significance. Provide your answers in the spaces provided; do NOT show your work in the blanks. Program 1: Minimal Program 2: Moderate Program 3: High Intensity Intensity Intensity Preterm 34 18 12 Term 36 52 58 The value for the calculated test statistic = 17.44 You must only write your final calculated answer for the test statistic. The critical value = 5.991 Indicate your decision regarding the null hypothesis in the space provided using the following instructions: Write 1 to reject the null hypothesis; or write 2 to fail to reject the null hypothesis. Do NOT write any additional info as it will be marked as incorrect. My decision regarding the null hypothesis 2\fQuestion 18 1 pts A research report based on an analysis of variances concludes that there are significant differences among treatments, with "F(4, 40) = 8.62, p