Which of the Following Will Not Increase the Width of a Confidence

question 67

Multiple Choice

Which of the following will not increase the width of a confidence interval?

• A)Increase the percentage of confidence from 80% to 90%
• B)Reduce the sample size from n = 25 to n = 16
• C)Increase the sample mean from MD = 2 to MD = 4
• D)All of the other options will increase the width of a confidence interval.

Calculate and interpret the slope and intercept of the least-squares regression line.

Understand the significance of the p-value in hypothesis testing relating to the slope of the regression line.

Apply Pearson's Correlation to examine the strength of the relationship between two variables.

Understand the distribution of the test statistic used in linear regression hypothesis testing.

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