STATS MIDTERM

Stats Midterm



Stats Midterm

1. In the following situation identify the implied population.

A recent report on the weekly news presented the findings of a study on the effectiveness of Onglyza, along with diet and exercise, for treating diabetes.

In the given situation the implied population is ratio of people having Onglyza along with diet and exercise to the total proportion of people having diabetes.

2. In the following scenario identify the type of statistical study that was conducted.

A Gallop poll surveyed 1,018 adults by telephone, and 22% of them reported that they smoked cigarettes within the past week.

For conducting the study of the above given scenario simple random sampling is utilizes for recruiting the respondents and descriptive analysis were perform to analyze the survey data set (Garthwaite Kadane 2005).

3. In the following scenario what is the statistic and the parameter it would estimate.

A recent study of 460 drivers age 70 and over by the National Highway Traffic Safety Administration reported that 75% of those drivers had uncorrected vision problems.

Statistic = 460 drivers

Parameter = 75% of those drivers had uncorrected vision problems

4. What type of sampling procedure was used to collect the data in the MM207 Student Data Set?

To collect the data set for MM207 Student Data Set simple random sampling technique was utilizes. In simple random sampling each member of population has equal chances of being selected.

5. From the MM207 Student Data Set identify one variable that is discrete and one variable that is continuous. Explain your reasoning. How do you know?

Discrete: the age of respondents.

Because this variable has a finite set of values.

Continuous: the shoe size of respondents

Because the values of this variable are in the form of decimal points.

6. From the MM207 Student Data Set identify the following:

A variable measured at the nominal level of measurement.

A variable ...