Mathematics, 05.05.2020 11:50 jasonweber8718
A statistics teacher taught a large introductory statistics class, with 500 students having enrolled over many years. The mean score over all those students on the first midterm was µ=78 with standard deviation σ=10 . One year, the teacher taught a much smaller class of only 25 students. The teacher wanted to know if teaching a smaller class was more effective and students performed better. We can consider the small class as an SRS of the students who took the large class over the years. The average midterm score was x¯=83 .The hypothesis should be:
A. H0:µ=88 vs. Ha:µ<88 .
B. H0:µ=78 vs. Ha:µ=88 .
C. H0:µ=88 vs. Ha:µ=78 .
D. H0:µ=78 vs. Ha:µ>78 .
Answers: 3
Mathematics, 21.06.2019 20:00
Can you me find the missing length. i attached an image.
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Mathematics, 21.06.2019 20:30
The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders
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A statistics teacher taught a large introductory statistics class, with 500 students having enrolled...
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