![subject](/tpl/images/cats/mat.png)
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 .
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza
Answers: 2
![question](/tpl/images/cats/mat.png)
You know the right answer?
A statistics teacher taught a large introductory statistics class, with 500 students having enrolled...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 14:00
![question](/tpl/images/cats/fizika.png)
Physics, 26.11.2020 14:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 26.11.2020 14:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.11.2020 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 26.11.2020 14:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
English, 26.11.2020 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 14:00
![question](/tpl/images/cats/en.png)
English, 26.11.2020 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.11.2020 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 14:00
![question](/tpl/images/cats/istoriya.png)
History, 26.11.2020 14:00