Longer Survival Rates of the Healthiest and Most Intelligent People

question 12

Multiple Choice

Longer survival rates of the healthiest and most intelligent people partially account for the apparent stability of intelligence across the life span found in

• A)the normal curve.
• B)longitudinal studies.
• C)standard deviations.
• D)cross-sectional studies.

Calculate the number of successes based on given proportions.

Understand and apply the plus four method for estimating proportion and standard errors.

Determine the P-value for hypothesis tests concerning proportions.

Understand how sample size affects confidence intervals.

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