# Answer to Question #14645 in Statistics and Probability for pri

Question #14645

1. One sample has n = 4 scores with SS = 100 and a second sample has n = 8 scores with SS = 140.

a. Calculate the pooled variance (s2p) for the two samples.

b. Calculate the estimated standard error (sM1-M2) for the sample mean difference.

c. If the sample mean difference (M1 – M2) is 6 points, is this enough to reject the null hypothesis for a two-tailed test with α = .05?

d. If the sample mean difference is 9 points, is this enough to reject the null hypothesis for a two-tailed test with α = .05?

a. Calculate the pooled variance (s2p) for the two samples.

b. Calculate the estimated standard error (sM1-M2) for the sample mean difference.

c. If the sample mean difference (M1 – M2) is 6 points, is this enough to reject the null hypothesis for a two-tailed test with α = .05?

d. If the sample mean difference is 9 points, is this enough to reject the null hypothesis for a two-tailed test with α = .05?

Expert's answer

## Comments

## Leave a comment