Q1. An anthropologist wants to collect data to determine whether the two different cultural groups thatoccupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights ofadult females are as followsGroup AGroup Bn=120n 150X 62.7X 61.8S 2.5S2 =2.62Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groupsare the same? Set alpha to.05.1. What are the appropriate null and alternative hypothesis?A. Ho: H-Hz = 0 H;: H-H2 # 0B. Ho: H-H2 20 H: H -H2 < 0C. Ho: Hy- Hz S0 H;: H-Hz >0D. Ho: Hy-Hz # 0 H: H - H2 = 0E. None of these.2. What is the Test statistics?A.T =-y-DoB. Z =X-y-DoC. T = 9-DoD-DoD.T =E. Z = -9-Do1,1SpZu TuSDn n23. What is the value of the test statistic?A. T = 9,20B.T = 2.86C.Z = 9.20D.T = 1.44E. None of these4. For a significance level of 0.05, what is the critical value?A. to o5 = 1.645 B.to025 = 1.960C.Za 0s = 1.645 D.zo025 = 1.960E.None of these5. What is the appropriate decision and conclusion?A. Reject Ho, so there is significance evidence to conclude heights of the two groups are different.B. Fail to eject H, so no significance evidence to conclude heights of the two groups are different.C. Fail to reject Ho, so there significance evidence to conclude: heights of the two groups are differentD. Reject Ho, so no significance evidence to conclude heights of the two groups are different.MacBook Air

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Description: Q1. An anthropologist wants to collect data to determine whether the two different cultural groups thatoccupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights ofadult females are as followsGroup AGro

Q1. An anthropologist wants to collect data to determine whether the two different cultural groups occupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights of that adult females are as follows Group A Group B n=120 n=150 X= 62.7 X2 61.8 !! S 2.5 S2 =2.62 Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groups are the same? Set alpha to.05. 1. What are the appropriate null and alternative hypothesis? A. Ho: Hy-Hz = 0 H;: µ, - Hz #0 B. Ho: Hy - Hz20 H;: µ, - Hz < 0 C. Ho: Hy- Hz S0 H;: 4-Hz > 0 D. Ho: Hy-Hz# 0 H: H - H2 =0 E. None of these. 2. What is the Test statistics? A.T = i-ỹ-Do %3D B. Z =-9-Do C.T = }-D D-Do D.T = E. Z = = -9-Do %3D 1.1 Sp SD n n2 n n2 3. What is the value of the test statistic? A. T= 9.20 B.T = 2.86 C.Z = 9.20 D.T = 1.44 E. None of these !3! 4. For a significance level of 0.05, what is the critical value? A. to os = 1.645 B.too25 = 1.960 C.Za os = 1.645 D.z.025 = 1.960 %3D E.None of these 5. What is the appropriate decision and conclusion? A. Reject H so there is significance evidence to conclude heights of the two groups are different. B. Fail to eject H, so no significance evidence to conclude heights of the two groups are different. C. Fail to reject Ho, so there significance evidence to conclude: heights of the two groups are different D. Reject Ho, so no significance evidence to conclude heights of the two groups are different.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

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ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

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Q1. An anthropologist wants to collect data to determine whether the two different cultural groups that
occupy an isolated Pacific Island grow to be different heights. The results of his samples of the heights of
adult females are as follows
Group A
Group B
n=120
n 150
X 62.7
X 61.8
S 2.5
S2 =2.62
Do these samples constitute enough evidence to reject the null hypothesis that the heights of the two groups
are the same? Set alpha to.05.
1. What are the appropriate null and alternative hypothesis?
A. Ho: H-Hz = 0 H;: H-H2 # 0
B. Ho: H-H2 20 H: H -H2 < 0
C. Ho: Hy- Hz S0 H;: H-Hz >0
D. Ho: Hy-Hz # 0 H: H - H2 = 0
E. None of these.
2. What is the Test statistics?
A.T =
-y-Do
B. Z =
X-y-Do
C. T = 9-Do
D-Do
D.T =
E. Z = -9-Do
1,1
Sp
Zu Tu
SD
n n2
3. What is the value of the test statistic?
A. T = 9,20
B.T = 2.86
C.Z = 9.20
D.T = 1.44
E. None of these
4. For a significance level of 0.05, what is the critical value?
A. to o5 = 1.645 B.to025 = 1.960
C.Za 0s = 1.645 D.zo025 = 1.960
E.None of these
5. What is the appropriate decision and conclusion?
A. Reject Ho, so there is significance evidence to conclude heights of the two groups are different.
B. Fail to eject H, so no significance evidence to conclude heights of the two groups are different.
C. Fail to reject Ho, so there significance evidence to conclude: heights of the two groups are different
D. Reject Ho, so no significance evidence to conclude heights of the two groups are different.
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