9.
Right-tailed, mu.
10.
Left-Tailed, p or probability.
11.
Two-tailed, σ.
12.
Right-Tailed, p.
13.
Left-Tailed, mu.
14.
Two-Tailed, σ.
15.
Ho: p = .105
H1: p > .105
Type I error: Determining the true proportion p is greater than .105 when it is not.
Type II error: Determining the true proportion p is not greater than .105 when it is.
17.
Ho: mu = $218,600
H1: mu < $218,600
Type I error: Determining the true mean is less than $218,600 when it is equal to $218,600.
Type II error: Determining the true mean is not less than $218,600 when it is less than $218,600.
19.
Ho: σ = 0.7 psi
H1: σ < 0.7 psi
Type I error: Determining the true σ is less than 0.7 when it is equal to 0.7
Type II error: Determining the true σ is not less than 0.7 when it is less than 0.7.
21
Ho: mu = $47.47
H1: mu ≠ $47.47
Type I error: Determining the true mean is different from $47.47 when it is not.
Type II error: Determining the true mean is not different from $47.47 when it is.
7
np(1-p) is greater then or equal to 10.
The Pvalue = .0104
Reject the Null Hypothesis.
9.
150*0.55(1-0.55) = 37.125 ≥ 10.
The Pvalue = .2296
Do not reject the Null Hypothesis.
11
500*0.05(1-0.05) = 45 ≥ 10.
The Pvalue = .1362
Do not reject the Null Hypothesis.
13.
We do not reject the null hypothesis. The data does not support that the dart-strategy resulted in a majority of the winners.
15.
The Pvalue = 2578.
No, there is not enough evidence to make that conclusion.
17.
The Pvalue = 1379.
No, there is not enough evidence to make that conclusion.
19.
The Pvalue = 0.0047.
Yes, there is enough evidence to make that conclusion.