Question 1

The 12-month rate of returns over a three-year period of a stock is 0.099,-0.289,and 0.089.The geometric mean rate of return per year for this stock is_____ .

Accepted Answer

The answer of The 12-month rate of returns over a...

Question 2

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,what is the five-number summary of the change in the cost?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 3

As a rule,a value is considered an extreme value if its Z score is greater than -3.

Accepted Answer

A value is typically considered an extreme value if its Z-score is greater than 3 or less than -3, not based on the formula provided.

Question 4

As a rule,a value is considered an extreme value if its Z score is less than 3.

Accepted Answer

A value is considered an extreme value if its Z score is greater than or equal to 3.

Question 5

You were told that the 1^st,2^nd and 3^rd quartiles of female students' weight at a major university are 95 lbs. ,125 lbs. ,and 138 lbs.What percentage of the students weigh more than 125 lbs...?

Accepted Answer

The answer of You were told that the 1^st,2^nd and...

Question 6

The rate of return for a stock over a three-year period is 0.527,0.145,and 0.684.The geometric mean rate of return is_____ .

Accepted Answer

The answer of The rate of return for a stock...

Question 7

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,what is the skewness statistic of the change in the cost?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 8

As a rule,a value is considered an extreme value if its Z score is less than -3.

Accepted Answer

A Z score less than -3 indicates that the value is more than 3 standard deviations below the mean, which is typically considered an extreme value or outlier.

Question 9

The Z score of a value can never be negative.

Accepted Answer

The Z score of a value can be negative if it falls below the mean. A Z score represents how many standard deviations a value is from the mean, so a value below the mean would have a negative Z score.

Question 10

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,what is the mean and median change in the cost?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 11

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,what is the coefficient of variation of the change in cost?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 12

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,is the change in the cost right- or left-skewed?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 13

The Z score of a value measures how many standard deviations the value is from the mean.

Accepted Answer

This statement is true. The formula for calculating a z-score is (value - mean) / standard deviation. The resulting z-score represents the number of standard deviations that the value is above or below the mean.

Question 14

The larger the Z score,the farther is the distance from the value to the median.

Accepted Answer

The Z score measures the distance of a value from the mean, not the median, in terms of standard deviations.

Question 15

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,what is the interquartile range of the change in the cost?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 16

As a rule,a value is considered an extreme value if its Z score is greater than 3.

Accepted Answer

This is true. An extreme value is typically defined as a value that falls more than three standard deviations away from the mean, which corresponds to a Z score greater than 3.

Question 17

The rate of return for the S&P 500 over a four-year period is -0.029,-0.061,-0.493,and- 0.286.The geometric mean rate of return per year is_____ .

Accepted Answer

The answer of The rate of return for the S&P...

Question 18

SCENARIO 3-7
In a recent academic year,many public universities in the United States raised tuition and fees due to a decrease in state subsidies.The change in the cost of tuition,a shared dormitory room,and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: $1,589,$593,$1,223,$869,$423,$1,720,$708,$1425,$922 and $308.
-Referring to Scenario 3-7,what is the standard deviation of the change in the cost?

Accepted Answer

The answer of SCENARIO 3-7
In a recent academic year,many public...

Question 19

The Z scores can be used to identify outliers.

Accepted Answer

Z scores help in identifying outliers as they indicate the number of standard deviations away from the mean a data point is. Typically, values with absolute Z scores greater than 3 are considered outliers.

Question 20

You were told that the 1^st,2^nd and 3^rd quartiles of female students' weight at a major university are 95 lbs. ,125 lbs. ,and 138 lbs...What percentage of the students weigh between 95 and 138 lbs...?

Accepted Answer

The answer of You were told that the 1^st,2^nd and...

Quiz 3: Numerical Descriptive Measures

The 12-month rate of returns over a three-year period of a stock is 0.099,-0.289,and 0.089.The geometric mean rate of return per year for this stock is_____ .

As a rule,a value is considered an extreme value if its Z score is greater than -3.

As a rule,a value is considered an extreme value if its Z score is less than 3.

You were told that the 1st,2nd and 3rd quartiles of female students' weight at a major university are 95 lbs. ,125 lbs. ,and 138 lbs.What percentage of the students weigh more than 125 lbs...?

The rate of return for a stock over a three-year period is 0.527,0.145,and 0.684.The geometric mean rate of return is_____ .

As a rule,a value is considered an extreme value if its Z score is less than -3.

The Z score of a value can never be negative.

The Z score of a value measures how many standard deviations the value is from the mean.

The larger the Z score,the farther is the distance from the value to the median.

As a rule,a value is considered an extreme value if its Z score is greater than 3.

The rate of return for the S&P 500 over a four-year period is -0.029,-0.061,-0.493,and- 0.286.The geometric mean rate of return per year is_____ .

The Z scores can be used to identify outliers.

You were told that the 1st,2nd and 3rd quartiles of female students' weight at a major university are 95 lbs. ,125 lbs. ,and 138 lbs...What percentage of the students weigh between 95 and 138 lbs...?

You were told that the 1^st,2^nd and 3^rd quartiles of female students' weight at a major university are 95 lbs. ,125 lbs. ,and 138 lbs.What percentage of the students weigh more than 125 lbs...?

You were told that the 1^st,2^nd and 3^rd quartiles of female students' weight at a major university are 95 lbs. ,125 lbs. ,and 138 lbs...What percentage of the students weigh between 95 and 138 lbs...?