Inference Procedures
This inference procedure is used to find what percent of a population fit a certain category.
What is a One Sample Z-Test for Proportions?
The mean of a data set
What is mean(x1)?
After many, many coin flips, the proportion of times that heads will occur is about 0.5.
What is probability?
The probability of flipping heads 3 times in a row.
What is 0.125?
Random sample of n
What is the random condition?
This inference procedure is used to estimate a difference in population means.
What is a Two Sample T-Interval for a Difference in Population Means?
How to create a Geometric distribution
What is geodist()
We are 95% confident that the interval from 0.23 to 0.27 captures the true proportion of flowers that will be red after cross-fertilizing red and white.
What is Confidence Interval?
What is .1667?
Counts at least 10, so sampling distribution is approximately normal
What is Large Counts?
This inference procedure is used to determine if temperatures of major cities in the United States differ between decades.
What is Matched Pairs t-test for Mean Difference?
How to create a Student's Distribution
What is tdist()?
Assuming the mean body temperature is 98.6 °F (H0: μ = 98.6), the probability of getting a sample mean of 97.9 °F or less, purely by chance is 0.023.
What is the P-value of an Inference Test?
What is 0.33333333?
All expected counts are at least __ in a chi-square test in order to say samp. distribution is approximately normal
What is 5?
This inference procedure is used to determine if there is a correlation between two random variables.
What is a Linear Regression t-test for Slope?
How to find a 5 number summary
What is stats(x1)?
When Matt ran for 5 minutes, the actual heart rate was 4.5 beats per minute higher than predicted.
What is Residual?
The probability of an apple being green is 0.3. With a sample of 12, this is the probability that at least 7 of the apples are green.
What is 0.039
No strong skew nor outliers
What is Approximately Normal?
This inference procedure is used to determine whether or not sample data matches the predicted distribution.
What is X2 Goodness of Fit Test?
The one thing you cannot find on Desmos
What is SD of a Discrete Random Variable?
If the true mean body temperature is 97.5 °F, the probability of finding convincing evidence to reject H0: μ = 98.6 is 0.73.
What is Power?
The commute times to a local office in Walpole, MA, are normally distributed with mean 35 minutes and SD 8 minutes. This is the probability that a randomly chosen employee has a commute time of less than 20 minutes?
What is 0.3
The residual plot shows similar scatter around residual = 0 for each x value?
What is the Equal SD condition?