If your sample mean is 11, your population average is 17, and your standard error of the mean is 3, what is your observed z value?
a. 14
b. 8
c. ?2
d. 2.2
Ans: c
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You want to survey 120 teachers in a school district that has 200 elementary teachers (i.e., 160 women and 40 men), 100 junior high teachers (i.e., 60 women and 40 men), and 100 high school teachers (i.e., 40 women and 60 men). How many men and women from among the elementary teachers would you choose for a proportional stratified sample?
a. 30 women and 30 men c. 48 women and 12 men b. 18 women and 12 men d. 60 women and 15 men
Where and when was Tien born?
Go to the Biography Resource Center database. Click Biographical Facts Search under Other Searches. When the search form page opens, click on View Occupation Terms, click on T, and choose Teacher which appears in the Occupation List. From the Nationality search box, choose American. From the Ethnicity search box, choose Asian American. From the Gender search box, choose Male. From the Birth Year search box, click is after and type in 1900. Click SEARCH. Click on the second entry for Chang-Lin Tien. Read the article and then answer the questions. What will be an ideal response?
A person involved in health promotion wanted to examine the likelihood that health promotion messages on social media would be more effective than in print media. She conducted one study where the probability of making a Type I error was 0.05 and a Type II error was 0.2. Does her research have empirical probability?
A. No, to have empirical probability the likelihood of an effect being detected requires a series of repeated identical experiments, where the probability of making a Type I error is above 0.05 and a Type II error is 0.2. B. No, to have empirical probability the likelihood of an effect being detected requires a series of repeated identical experiments, where the probability of making a Type I error is 0.05 and a Type II error is 0.2. C. Yes, to have empirical probability the likelihood of an effect being detected requires a single experiment, where the probability of making a Type I error is above 0.05 and a Type II error is 0.2. D. No, to have empirical probability the likelihood of an effect being detected requires a single experiment, where the probability of making a Type I error is above 0.05 and a Type II error is 0.1.
Describe the controversy involved in integrating curriculum. What does research indicate about the effectiveness of integrating curriculum (compared to not integrating curriculum) for increasing student learning?
What will be an ideal response?