A survey reported that 70 of those responding to a national

Reference no: EM13602104

A survey reported that 70% of those responding to a national survey of college freshmen were interested in taking summer courses. Using the sample size of 49, calculate a 95% confidence interval for the proportion of college students who are interested in taking summer courses.

A.57% to 83%
B.65% to 75%
C.70% - 83%%
D.None of the above.

Paul wants to know how difficult it is to reach an employee of USC Office during 12-1pm. She has no idea about the proportion of calls to the USC office that were reached by the caller (proportion is unknown). With 95% level of confidence and 3% error (E), how many calls she should include in order to get answer to her question?

A.11
B.415
C.418
D.403
E.406
F.None of the above

During the last semester, 60 students of USC took the Basic Statistics course. Twelve of these students received more than 80 for the final exam. At 99% level of confidence, estimate the percentage of all students at USC who received more than 80 for the final exam of the Basic Statistics course during the last 10 years.

A.7% to 33%
B.18% to 22%
C.59%
D.None of the above.

Reference no: EM13602104

Questions Cloud

What is the maximum height the blue ball reaches what is : a red ball is thrown down with an initial speed of 1.3 ms from a height of 27.0 meters above the ground. then 0.5

Propane undergoes a process from state 1 where p114 mpa : propane undergoes a process from state 1 where p11.4 mpa t160 c to state 2 where p21.0 mpa during which the change in

We are studying the proportion of cities that have private : we are studying the proportion of cities that have private garbage collector. we want a maximum error of 0.10 and a 95

In the previous problem suppose that the parties decide : alex loans nomar 200000 at a rate of 4 nominal interest convertible quarterly. they agree that nomar will repay the

A survey reported that 70 of those responding to a national : a survey reported that 70 of those responding to a national survey of college freshmen were interested in taking summer

An analysis of comparative balance sheets the current years : an analysis of comparative balance sheets the current years income statement and the general ledger accounts of conard

Two 050g spheres are charged equally and placed 17cm apart : two 0.50g spheres are charged equally and placed 1.7cm apart. when released they begin to accelerate at 130ms2 . what

Alex loans nomar 200000 at a rate of 4 nominal interest : alex loans nomar 200000 at a rate of 4 nominal interest convertible quarterly. they agree that nomar will repay the

A curved rectangular bar has a mean radius of 6 in and : a curved rectangular bar has a mean radius of 6 in and cross section width b2.5 in and depth h 1.5 in. 1. determine the

User Account

All Pages