STA2023- Module 2 Exam Questions and Correct Answers Latest Update (2025-2026) Already Passed
c) Both are statistics - Answers 1. In 2010, the General Social survey had a question which asked
respondents if they were willing to pay higher prices to help the environment. In 2010, out of 1361
people, 8.2% said that they were very willing and 14.6% said that they were not at all willing. Are "8.2%"
and "14.6%" statistics or parameters?
a) Both are parameters.
b) 8.2% is a statistic and 14.6% is a parameter.
c) Both are statistics.
d) 8.2% is a parameter and 14.6% is a statistic.
d) Both 84 and 80 are statistics - Answers 2. A French teacher was interested in determining if a foreign
language computer program could help students learn better. She decided to randomly put students
into two groups. One group would use the computer program and the other group would use traditional
methods. The group that used the computer program scored an average of 84 on the first test. The
other group that used traditional methods scored an average of 80 on the first test. She will use the
information from these two groups to improve her teaching for all students that she sees. Which of the
following is true regarding the numbers "80" and "84"?
a) Both 84 and 80 are parameters.
b) 84 is a statistic; 80 is a parameter
c) 84 is a parameter; 80 is a statistic
d) Both 84 and 80 are statistics.
, c) Both 335 and 289 are statistics - Answers 3. A researcher carries out a randomized comparative
experiment with young rats to investigate the effects of a toxic compound in food. She feeds the control
group a normal diet. The experimental group receives a diet with 2500 parts per million of the toxic
material. After 8 weeks, the mean weight gain is 335 grams for the control group and 289 for the
experimental group. Which of the following is true regarding the two numbers "335" and "289"?
a) 335 is a parameter; 289 is a statistic
b) 335 is a statistic; 289 is a parameter
c) Both 335 and 289 are statistics
d) Both 335 and 289 are parameters
b) both are statistics - Answers 4. In 2000 and 2010, General Social survey included a question that asked
respondents if they felt that "Private enterprise would solve US problems." In 2010, out of 1299
respondents, 14.4% said that they strongly agreed with that statement. In 2000, out of the 1,130
respondents, 15.3% said that they agreed with this statement. Is "14.4%" and "15.3%" a statistic or a
parameter?
a) 14.4% is a parameter and 15.3% is a statistic.
b) Both are statistics.
c) 14.4% is a statistic and 15.3% is a parameter.
d) Both are parameters.
c) description - Answers 5. In 2010, the General Social Survey had a question which asked respondents if
they were willing to pay higher prices to help the environment. In 2010, out of 1361 people that
responded, 8.2% said that they were very willing and 14.6% said that they were not at all willing. What
part of the field of statistics is this?
c) Both are statistics - Answers 1. In 2010, the General Social survey had a question which asked
respondents if they were willing to pay higher prices to help the environment. In 2010, out of 1361
people, 8.2% said that they were very willing and 14.6% said that they were not at all willing. Are "8.2%"
and "14.6%" statistics or parameters?
a) Both are parameters.
b) 8.2% is a statistic and 14.6% is a parameter.
c) Both are statistics.
d) 8.2% is a parameter and 14.6% is a statistic.
d) Both 84 and 80 are statistics - Answers 2. A French teacher was interested in determining if a foreign
language computer program could help students learn better. She decided to randomly put students
into two groups. One group would use the computer program and the other group would use traditional
methods. The group that used the computer program scored an average of 84 on the first test. The
other group that used traditional methods scored an average of 80 on the first test. She will use the
information from these two groups to improve her teaching for all students that she sees. Which of the
following is true regarding the numbers "80" and "84"?
a) Both 84 and 80 are parameters.
b) 84 is a statistic; 80 is a parameter
c) 84 is a parameter; 80 is a statistic
d) Both 84 and 80 are statistics.
, c) Both 335 and 289 are statistics - Answers 3. A researcher carries out a randomized comparative
experiment with young rats to investigate the effects of a toxic compound in food. She feeds the control
group a normal diet. The experimental group receives a diet with 2500 parts per million of the toxic
material. After 8 weeks, the mean weight gain is 335 grams for the control group and 289 for the
experimental group. Which of the following is true regarding the two numbers "335" and "289"?
a) 335 is a parameter; 289 is a statistic
b) 335 is a statistic; 289 is a parameter
c) Both 335 and 289 are statistics
d) Both 335 and 289 are parameters
b) both are statistics - Answers 4. In 2000 and 2010, General Social survey included a question that asked
respondents if they felt that "Private enterprise would solve US problems." In 2010, out of 1299
respondents, 14.4% said that they strongly agreed with that statement. In 2000, out of the 1,130
respondents, 15.3% said that they agreed with this statement. Is "14.4%" and "15.3%" a statistic or a
parameter?
a) 14.4% is a parameter and 15.3% is a statistic.
b) Both are statistics.
c) 14.4% is a statistic and 15.3% is a parameter.
d) Both are parameters.
c) description - Answers 5. In 2010, the General Social Survey had a question which asked respondents if
they were willing to pay higher prices to help the environment. In 2010, out of 1361 people that
responded, 8.2% said that they were very willing and 14.6% said that they were not at all willing. What
part of the field of statistics is this?
