10.75 Marijuana and gender In a survey conducted by Wright State University, senior high school students were...
Question:
10.75 Marijuana and gender In a survey conducted by Wright State University, senior high school students were asked if they had ever used marijuana. The table shows results of one analysis, where X is the count who said yes. Assuming these observations can be treated as a random sample from a population of interest,
a. Interpret the reported estimate and the reported confidence interval. Explain how to interpret the fact that 0 is not in the confidence interval.
b. Explain how the confidence interval would change if males were Group 1 and females were Group 2.
Express an interpretation for the interval in that case.
Sample X N Sample p 1. Female 445 1120 0.3973 2. Male 515 1156 0.4455 estimate for p(1) − p(2): −0.0482 95% CI for p(1) − p(2): (−0.0887, −0.0077)
Step by Step Answer:
Statistics The Art And Science Of Learning From Data
ISBN: 9781292164878
4th Global Edition
Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg