Reference no: EM132370270

1. The chi-square statistic is often used in behavioral data to test for relationships between variables. This procedure is based on the null hypothesis of no association or independence. Which of the following statements is incorrect regarding this analytic technique?

2. Multiple logistic regression analysis applies when there is a single dichotomous outcome and more than one independent variable.

3. For a two-tailed test using z values at the 5% significance level we reject H0:

4. Which of the following measures is least affected by extreme or outlying values in a dataset?

5. What is the first summary statistic for a continuous variable?

6. The following are HDL levels measured in healthy females.

60 63 60 58 60 70 54 72 80 75 78 77

Calculate the range

7. What is the median blood glucose level of the following data set collected from 8 individuals: 89, 95, 99, 102, 107, 108, 111, and 119?

8. Which of the following types of bias is most commonly associated with a case-control study?

9. A study is designed to evaluate the impact of a daily multivitamin on students' academic performance. One hundred sixty students are randomly assigned to receive either the multivitamin or a placebo and are instructed to take the assigned drug daily for 20 days. On day 20, each student takes a standardized exam and the mean exam scores are compared between groups. This study is an example of a

10. Which of the following is true about a positively skewed distribution of data?

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