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Organizing Data
Data Relationships
Producing Data & Experiments
Probability & Distributions
Inference & Tests
100
This measure of center is more resistant to outliers than the mean.
What is the median?
100

observed y - predicted y hat

What is the residual?

100

This phrase is used to describe an observed effect so large that it would rarely occur by chance.

What is statistically significant?

100

This type of random variable requires a fixed number of trials.

What is a binomial random variable?

100

The type of significance test used for the mean of a single population when the standard deviation of the population is unknown.

What is a T test (or T procedure)?

200
To calculate, subtract the mean of the distribution from the observed x, then divide by the standard deviation.
What is the z-score (or standardized value)?
200

Measures the direction and strength of a linear relationship between two quantitative variables.

What is correlation (or r)?

200

randInt(1,9,3)

What is the calculator command for generating 3 random numbers from 1 to 9?

200

The type of variable where the probability distribution assigns probability as the area under the density curve above a specific interval.

What is a continuous random variable?

200

The formula to calculate the one-sample t statistic.

What is t = (x bar minus mu sub o) divided by (s sub x  divided by the square root of n) ?

300
This rule helps to determine if data is normally distributed by checking the number of observations within each interval.
What is the 68-95-99.7 rule?
300

The fraction of the variables in the values of y that is explained by the LSR of y on x.

What is the coefficient of determination (or r squared)?

300

This experimental design involves the random assignment of units to treatments which are carried out separately within each group of units known to be similar in some way that is expected to affect the responses.

What is block design?

300

Events that have no outcomes in common and can never occur simultaneously, for which the addition rule is used.

What are disjoint events (or mutually exclusive events)?

300

SRS

Independence

Normal

What are the conditions for conducting a test or interval 

400
The square of the standard deviation.
What is the variance?
400

The mean is greater than the median 

What is a right skewed distribution?

400

The 3 basic principles of experimental design.

What are control, randomize, and replicate?

400

The condition involving the population size that must be satisfied to use sigma divided by the square root of n as the standard deviation of a sampling distribution.

What is 'the population is at least 10 times the sample size'?

400

Two of the conditions to be verified for inference about a proportion.

What are the population size be greater than or equal to 10n and n times p hat & n times (1 - p hat) be greater than or equal to 10? (SRS could also be one of the two)

500

This calculator command can be used to find the area under a normal distribution and above an interval.

What is normalcdf?

500

Refers to the rejection of the null hypotheses Ho in favor of Ha when the p-value is....

What is less than the significance level

500

  1. Let x1,x2, be simple random samples (SRS) from a distribution with mean  mu and standard deviation  sigma.  The sample mean  x bar has a distribution .....

What are   mu and sigma/square root of n

500

The formula to determine the variance for a discrete random variable with three possible values.

What is sigma sub x squared = (the square of the difference between x sub 1 and mu multiplied by p sub 1) + (the square of the difference between x sub 2 and mu multiplied by p sub 2) + (the square of the difference between x sub 3 and mu multiplied by p sub 3) ?

500

x bar +/- t* sx/square root of n

What is the confidence interval for means