Question 30 1.5 out of 1.5 points What is the first step when conducting a hypothesis test? Question 31 1.5 out of 1.5 points Which method is used for devising a research setting to attribute changes in one variable solely to a change in another variable? Question 32 1.5 out of 1.5 points Consider the following survey results: Question: How likely are you to listen to music on your smartphone in the next seven days? Emanuel like! Somewhat like! Suppose your research team want to know how accurately the sample statistic 30% estimates the percent extremely likely to listen to music on their smartphone in the next seven days with 95% confidence. Does your team have all the information it needs to calculate the confidence interval for a percentage? Question 33 1.5 out of 1.5 points When looking at a standard bell curve for standard deviation, the wider the curve, the lower the variability