![subject](/tpl/images/cats/mat.png)
Mathematics, 26.06.2020 18:01 sjkehildu
A consumer group hoping to assess customer experiences with auto dealer surveys 167 people who recently bought new cars; 3% of them expressed dissatisfaction with the salesperson. We want to learn about the general opinion towards the salesperson.
a) Please construct a 90% score confidence interval for the population proportion of dissatisfaction and interpret it.
b) Please construct a 90% traditional confidence interval.
c) If we want to control the width of the 90% score confidence interval to be within 0.02, how large a sample do we need? Please use the conservative method.
d) If we increase the confidence level from 90% to 95%, will the width of CI be increased or decreased? Why?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:30
Based upon past experience, barry expects no overdrafts. he expects no 2nd copies of statements. barry estimates that he will use network atms about 5 times a month with either bank. barry decides in the end to choose eecu. assuming that both banks provide the necessary services equally well, and based upon the tables of fees given above, how much can barry reasonably expect to save annually by choosing eecu in this case over e-town bank? a. $72 b. $78 c. $144 d. $24
Answers: 2
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
You know the right answer?
A consumer group hoping to assess customer experiences with auto dealer surveys 167 people who recen...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 12.02.2020 00:33
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2020 00:33
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 12.02.2020 00:34
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)