The following three independent random samples are obtained from three normally distributed populations with equal variances. The dependent variable is starting hourly wage, and the groups are the types of position (work study, co-op, internship). Software was used to conduct a one-way ANOVA to determine if the means are equal using a = 0.10. Summary Statistics: Work Study. Mean 12.017 Standard Deviation 0.2216 Sample Size 15

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The following three independent random samples are obtained from three normally distributed populations
with equal variances. The dependent variable is starting hourly wage, and the groups are the types of
position (work study, co-op, internship).
Software was used to conduct a one-way ANOVA to determine if the means are equal using a = 0.10.
Summary Statistics:
Work Study 12.942
Co-op
Internship
ANOVA Table:
Source
Between
Within
Mean Standard Deviation
Total
14.145
15.452
SS
38.2855
df
112.5766 48
Work Study vs. Co-op
0.3246
Co-op vs. Internship
1.751
74.2911 46 1.615
Work Study vs. Internship
0.5053
MS
F
Sample Size
15
24
2 19.1428 11.8531 7.0E-5
10
Perform a Bonferroni test to see which means are significantly different. Round your answers to three
decimal places, and round any interim calculations to four decimal places.
Test Statistic Adjusted P-value Statistically significant difference?
P-value
?
?
?
Transcribed Image Text:The following three independent random samples are obtained from three normally distributed populations with equal variances. The dependent variable is starting hourly wage, and the groups are the types of position (work study, co-op, internship). Software was used to conduct a one-way ANOVA to determine if the means are equal using a = 0.10. Summary Statistics: Work Study 12.942 Co-op Internship ANOVA Table: Source Between Within Mean Standard Deviation Total 14.145 15.452 SS 38.2855 df 112.5766 48 Work Study vs. Co-op 0.3246 Co-op vs. Internship 1.751 74.2911 46 1.615 Work Study vs. Internship 0.5053 MS F Sample Size 15 24 2 19.1428 11.8531 7.0E-5 10 Perform a Bonferroni test to see which means are significantly different. Round your answers to three decimal places, and round any interim calculations to four decimal places. Test Statistic Adjusted P-value Statistically significant difference? P-value ? ? ?
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