1. A researcher hypothesizes that children who learn to read using phonics will read better than those not taught in this manner. Identify H0 and Ha. Is this a one- or two-tailed test?
2. If a researcher decides to use the .01 level of significance rather than using the more conventional .05 level of significance, what type of error is more likely to be made? Why?
3. Do the attached exercise. enter the data shown in the exercise in the excel sheet to find the responses to the questions.
4. What multivariate technique would you use to analyze each of the following problems? Explain your choice.
a. Employee job satisfaction (high, normal, low) and employee success (0-2 promotions, 3-5 promotions, 5+ promotions) are to be studied in three different departments of a company.