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Chapter 11 Estimation and Confidence Intervals - Please answer 2-4 Practice 2) Estimation for the one-sample t Test In...

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Chapter 11 Estimation and Confidence Intervals - Pleaseanswer 2-4

Practice 2) Estimation for the one-sample tTest

In chapter 9, we computed a one-sample t test examining thesocial functioning of relatives of individuals with OCD compared tothe general healthy population.

In 18 participants, M = 62.00; SD = 20.94

Find the 95% CI for these data

Practice 3) Estimation for the two-independent-sample ttest

In chapter 9, we tested the mean difference of calorieconsumption between two independent groups given the same buffet:One group was instructed to eat fast, and another group wasinstructed to eat slowly. In a sample of 12 participants, werecorded M=600 in Grout Eating Slowly and M=650 in Group EatingFast with an estimated standard error for the difference ofSM1-M2 = 82.66. Here we will find the 95%confidence interval for these data.

Practice 4) Estimation for the Related-Sample tTest

In chapter 10, we tested if teacher supervision influences thetime that elementary school children read. The difference in timespent reading in the presence versus absence of a teacher wasMD=15 (n=8); the estimated standard error for thedifference was SMD=5.35. Here we will find the 95%confidence interval for these data.

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