Measures of Distributions - AP Statistics
Card 1 of 8
follows a chi-squared distribution with 
degrees of freedom and 
through 
are independent standard normal variables.
If 
, what is 
?
If
Tap to reveal answer
Use the fact that the sum of 
squared standard and independent normal variables follows a chi-squared distribution with 
degrees of freedom.
Use the fact that the sum of
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The purpose of the t test is to do which of the following?
The purpose of the t test is to do which of the following?
Tap to reveal answer
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
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follows a chi-squared distribution with degrees of freedom and through are independent standard normal variables.
If , what is ?
If
Tap to reveal answer
Use the fact that the sum of squared standard and independent normal variables follows a chi-squared distribution with degrees of freedom.
Use the fact that the sum of
← Didn't Know|Knew It →
The purpose of the t test is to do which of the following?
The purpose of the t test is to do which of the following?
Tap to reveal answer
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
← Didn't Know|Knew It →
follows a chi-squared distribution with degrees of freedom and through are independent standard normal variables.
If , what is ?
If
Tap to reveal answer
Use the fact that the sum of squared standard and independent normal variables follows a chi-squared distribution with degrees of freedom.
Use the fact that the sum of
← Didn't Know|Knew It →
The purpose of the t test is to do which of the following?
The purpose of the t test is to do which of the following?
Tap to reveal answer
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
← Didn't Know|Knew It →
follows a chi-squared distribution with degrees of freedom and through are independent standard normal variables.
If , what is ?
If
Tap to reveal answer
Use the fact that the sum of squared standard and independent normal variables follows a chi-squared distribution with degrees of freedom.
Use the fact that the sum of
← Didn't Know|Knew It →
The purpose of the t test is to do which of the following?
The purpose of the t test is to do which of the following?
Tap to reveal answer
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.
← Didn't Know|Knew It →