A researcher is interested in the effect that headwear has on perceptions of whether a person is a security risk at the airport. She takes pictures of a 35-year-old male with no hat, with a knit cap pulled low on his forehead, and with a cowboy hat. Security workers (n=36] from the regional international airport are randomly assigned to view one of the pictures and asked to rate how much of a security risk they would consider the person in the picture. Ratings vary from 1= no risk to 10=high risk. No Hat 5 3 3 5 3 Knit Cap Corlwy atra 8 7 5 7 6 Cowboy Hat X20 wE TOMBEa soitto amit al 3 6 7 7 5 4 9 2016 No= No Hat 2 6 7 5 Knit Cap 8 7 10 8 Cowboy Hat 5 3 5 a. What is the IV? What are its levels? b. State the null and directional alternative hypotheses. c. Calculate the appropriate analysis(es) to compare the groups, using hand calculations, a data analysis program, or both (check with your professor). d. What test is required after the initial analysis? Why did you choose the test you did? e. Write up your results as if you were going to include them in a Results section using APA format. f. Interpret your results as you would in a Discussion section. Include possible limitations to the study, recommendations for security officials at the airport, and a suggestion for future research.