write NA if there's none) d. Critical Value e. Computed Statistics f. Decision and Conclusion

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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26-35. An admission test was administered to incoming freshmen for the STEM and ABM with 100
students randomly selected from each strand. The mean scores of the given samples were 90 and 85
and the variances of the test scores were 40 and 35, respectively. Is there a significant difference
between the two groups? Use the 95% confidence level.
a. Hypotheses
b. Alpha
c. Degrees of Freedom
(write NA if there's none)
d. Critical Value
e. Computed Statistics
f. Decision and Conclusion
Transcribed Image Text:26-35. An admission test was administered to incoming freshmen for the STEM and ABM with 100 students randomly selected from each strand. The mean scores of the given samples were 90 and 85 and the variances of the test scores were 40 and 35, respectively. Is there a significant difference between the two groups? Use the 95% confidence level. a. Hypotheses b. Alpha c. Degrees of Freedom (write NA if there's none) d. Critical Value e. Computed Statistics f. Decision and Conclusion
a) The null and alternative hypothesis are
HỌ:H1= U2
H1: H₁ H₂
b) The significance level alpha (a) = 0.05
Assuming the population variance are equal
c) degree of freedom (df) = n1 + n2-1
= 100 + 100-2
= 198
Transcribed Image Text:a) The null and alternative hypothesis are HỌ:H1= U2 H1: H₁ H₂ b) The significance level alpha (a) = 0.05 Assuming the population variance are equal c) degree of freedom (df) = n1 + n2-1 = 100 + 100-2 = 198
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