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Need help with statistic problems ANOVA assumes equal variances

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Need help with statistic problems? ANOVA assumes equal variances within each treatment. A) True B) False 2 Comparison of c means in one-factor ANOVA is the same as using c repeated t-tests. A) True B) False 3 Hartley's test measures the equality of the means for several groups. A) True B) False 4 If you have 4 factors (call them A, B, C and D) in an ANOVA experiment with replication you could have 4 different two-factor interactions. A) True B) False 5 Use the following scenario to answer questions 5 to 12. Sound engineers studied factors that might affect the output (in decibels) of a rock concert speaker system. The desired level of significance was α = .05. The results of their ANOVA tests are shown.The number of positions tested was A) 1 B) 2 C) 3 D) 4 6 The number of amplifiers tested was A) 1 B) 2 C) 3 D) 4 E) 24 7 The number of observations was A) 16 B) 19 C) 23 D) 24 8 The number of observations per cell was A) 1 B) 2 C) 3 D) 4 9 The effect of amplifier was A) significant. B) insignificant. C) borderline. 10 The effect of position was A) significant. B) insignificant. C) borderline. 11 The F statistic for amplifier was A) 10.16 B) 9.90 C) 5.72 12 The interaction was A) significant. B) insignificant. C) borderline. Use the following scenario to answer questions 13 to 15. Three randomly-chosen pieces of four types of PVC pipe of equal wall thickness are tested to failure to determine the burst strength (in pounds per square inch) under three temperature conditions, yielding the results shown below. 13 Which test would be appropriate? A) two-factor ANOVA with replication. B) one-factor ANOVA. C) dependent (paired samples) t-test. D) two-factor ANOVA no replication. 14 Total degrees of freedom would be A) 19 B) 12 C) 35 D) 59 15 An interaction test would be appropriate. A) True. B) False

Optional Information: State/Country relating to Question: United States

Already Tried: I am in need of help don't know statistics

1.) ANOVA assumes equal variances within each treatment. A) True B) False

2.) Comparison of c means in one-factor ANOVA is the same as using c repeated t-tests. A) True B) False

3 Hartley's test measures the equality of the means for several groups. A) True B) False

4 If you have 4 factors (call them A, B, C and D) in an ANOVA experiment with replication you could have 4 different two-factor interactions. A) True B) False

5 Use the following scenario to answer questions 5 to 12. Sound engineers studied factors that might affect the output (in decibels) of a rock concert speaker system. The desired level of significance was α = .05. The results of their ANOVA tests are shown.The number of positions tested was A) 1 B) 2 C) 3 D) 4

6 The number of amplifiers tested was A) 1 B) 2 C) 3 D) 4 E) 24

7 The number of observations was A) 16 B) 19 C) 23 D) 24

8 The number of observations per cell was A) 1 B) 2 C) 3 D) 4

9 The effect of amplifier was A) significant. B) insignificant. C) borderline.

10 The effect of position was A) significant. B) insignificant. C) borderline.

11 The F statistic for amplifier was A) 10.16 B) 9.90 C) 5.72

12 The interaction was A) significant. B) insignificant. C) borderline. Use the following scenario to answer questions 13 to 15. Three randomly-chosen pieces of four types of PVC pipe of equal wall thickness are tested to failure to determine the burst strength (in pounds per square inch) under three temperature conditions, yielding the results shown below.

13 Which test would be appropriate? A) two-factor ANOVA with replication. B) one-factor ANOVA. C) dependent (paired samples) t-test. D) two-factor ANOVA no replication.

14 Total degrees of freedom would be A) 19 B) 12 C) 35 D) 59

15 An interaction test would be appropriate. A) True. B) False

Optional Information: State/Country relating to Question: United States

Already Tried: I am in need of help don't know statistics

the following scenario to answer questions 13 to 15. Three randomly-chosen pieces of four types of PVC pipe of equal wall thickness are tested to failure to determine the burst strength (in pounds per square inch) under three temperature conditions, yielding the results shown below.

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