1._____________________ is used to predict the value of a dependent variable based on the value of...
1._____________________ is used to predict the value of a dependent variable based on the value of at least one independent variable. a. Correlation b. Regression c.Confidence interval d.Strength test e.Scatter diagram
2. In order to establish a confidence interval for a mean when the population standard deviation is known, what four data points are necessary?
3.What is the only exception to the rule to using a z score for a critical value for confidence intervals?
Homework Answers
1. Regression is used to predict the value of a dependent variable based on the value of at least one independent variable.
b. Regression
2. Sample mean, Population standard deviation, Sample size, Confidence level.
3. To use z score for calculating Confidence interval we have sample size is less than 30 and population standard deviation should be known.
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