Hypothesis Testing Concepts

Testing for mean differences

Testing for population proportion

Testing for variance

Testing for correlation

Alternative hypothesis

Neither hypothesis

Both hypotheses

Null hypothesis

Proportion is equal to hypothesized value

Proportion is less than hypothesized value

Proportion is greater than hypothesized value

Proportion is not equal to hypothesized value

Number of successes multiplied by sample size

Sample size divided by number of successes

Number of successes divided by sample size

Sample size minus number of successes

0.72

0.65

0.40

0.50

65

72

250

180

0.65

0.72

0.40

0.50

p > 0.65

p ≠ 0.65

p < 0.65

p = 0.65

p = 0.65

p < 0.65

p > 0.65

p ≠ 0.65

1.96

0.65

0.72

2.32