DATA ANALYSIS
Explain what a z score represents.
What is the number of standard deviations a value is above or below the mean.
Explain what the p-value means.
What is the probability of obtaining results at least as unusual as the sample if the null hypothesis is true.
Explain what a residual is
What is the difference in the actual y value and the predicted y value
Explain what 95% confidence means.
What is in many random samples, 95% of the confidence intervals produced will contain the true parameter for the population.
Explain what r squared represents.
What is the percent of the variation in the y that is accounted for by the linear relationship with x.