A researcher wants to investigate the effect of weather on college students' study habits. On a sunny day, the researcher sits in the quad and records the number of minutes each student puts into studying. The researcher finds the mean number of minutes of study is 39.8. This is an example of a _____.
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Step 1: Recognize that the researcher is simply observing and recording without manipulating any variables—this is an observational study. Show more…
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4. A college student is interested in whether there is a difference between male and female students in the amount of time spent studying each week. The student gathers information from a random sample of male and female students on campus. Amount of time spent studying is normally distributed. The data follow. Males Females 27 25 25 29 19 18 10 23 16 20 22 15 14 19 a. What statistical test should be used to analyze these data?
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