Provide an appropriate response.A city in the Pacific Northwest recorded its highest temperature at 73 degrees Fahrenheit and its lowest temperature at 22 degrees Fahrenheit for a particular year. Use this information to find the upper and lower limits of the first class if you wish to construct a frequency distribution with 10 classes.

Determine whether the data are qualitative or quantitative.the colors of automobiles on a used car lot

Provide an appropriate response.The grade point averages for 10 students are listed below. Find the range of the data set.

Identify the sampling technique used.In a recent television survey, participants were asked to answer “yes” or “no” to the question “Are you in favor of the death penalty?” Six thousand five hundred responded “yes” while 4700 responded “no”. There was a fifty-cent charge for the call.

Determine whether the study is an observational study or an experiment.A pollster obtains a sample of students and asks them how they will vote on an upcoming referendum.

Provide an appropriate response.Find the z-score for the value 79, when the mean is 55 and the standard deviation is 5.

Determine whether the study is an observational study or an experiment.A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 89 people to a treatment group and 89 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients’ symptoms are evaluated.

Identify the data set’s level of measurement.marriage status (married, single, or divorced) of the faculty at the University of Colorado

The distribution of incomes tend to be skewed- most have average incomes, and a few have very high incomes. What measure of center would be the best choice for this kind of data? 

Provide an appropriate response.The scores of the top ten finishers in a recent golf tournament are listed below. Find the mean score.