9 terms

One Sample (Proportion) Z Test

1. A SRS was used

2. n < 10% of the population

3. Successes and failures each >= 10

2. n < 10% of the population

3. Successes and failures each >= 10

Two Sample (Proportion) Z Test

1. Data were collected independently and groups are independent

2. Data were SRSs

3. n < 10% of populations

4. Successes and failures each >= 10

2. Data were SRSs

3. n < 10% of populations

4. Successes and failures each >= 10

One Sample (Means) t Test (df = n - 1)

1. A SRS was used

2. n < 10% of the population

3. Sample is normally distributed OR n > 30

2. n < 10% of the population

3. Sample is normally distributed OR n > 30

Matched Pairs (Means) t Test (df = n - 1)

1. A SRS was used

2. n < 10% of the population

3. Differences are normally distributed OR n > 30

2. n < 10% of the population

3. Differences are normally distributed OR n > 30

Two Sample (Means) t Test

1. Data were collected independently and groups are independent

2. A SRS was used

3. n < 10% of the population

4. Samples are normally distributed OR n > 30

2. A SRS was used

3. n < 10% of the population

4. Samples are normally distributed OR n > 30

χ2 Goodness-of-Fit Test (df = cell count - 1)

1. Data are categorical counts

2. A SRS was used

3. n < 10% of the population

4. All expected counts >= 5

2. A SRS was used

3. n < 10% of the population

4. All expected counts >= 5

χ2 Test of Homogeneity (df = (r-1)*(c-1) )

1. Data are categorical counts

2. A SRS was used

3. n < 10% of the population

4. All expected counts >= 5

2. A SRS was used

3. n < 10% of the population

4. All expected counts >= 5

χ2 Test of Independence (df = (r-1)*(c-1) )

1. Data are categorical counts

2. A SRS was used

3. n < 10% of the population

4. All expected counts >= 5

2. A SRS was used

3. n < 10% of the population

4. All expected counts >= 5

Regression Slope t Test (df = n - 2)

1. Scatterplot is approximately linear

2. No pattern in the residuals plot

3. Residuals plot has a constant spread

4. Residuals are normally distributed

2. No pattern in the residuals plot

3. Residuals plot has a constant spread

4. Residuals are normally distributed