Since a small surcharge would be added to the phone bills, Ask an Expert

Statistics

Test the proportion of customers favouring underground installation is more than 60%.

A telephone company is trying to decide whether some new lines in a large community should be installed underground. Since a small surcharge would be added to the phone bills to pay for the extra installation costs the company has decided to survey customers and proceed only if the survey strongly indicates that more than 60 percent of all customers favour underground installation. In a random sample of 160 customers, 115 favour underground installation in spite of the surcharge.

-Construct a 99 percent confidence interval for the proportion of customers favouring underground installation.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M921916

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

What is the sample size for studies with moe of -35 and -28

What is the sample size for studies with MOE of +/-3.5% and +/-2.8%, with a confidence level of 95%, sample statistics of 50. Suppose the category population was 7500 (less than 10,000)? Remember the FPC. What would be t ...

Researchers randomly assigned 25 beginning students of

Researchers randomly assigned 25 beginning students of Russian to begin speaking practice immediately and another 25 to delay speaking for 4 weeks. At the end of the semester both groups took a standard test of comprehen ...

Can you look for multicollinearity between a categorical

Can you look for multicollinearity between a categorical independent variable and a continuous dependent variable or can you only look for multicollinearity between a continuous independent variable and a continuous depe ...

In a random sample of 100 college student 60 were females

In a random sample of 100 college student 60 were females, 65 were under 21 years of age and 15 males were 21 years of age or older, a student is selected at random from the sample. What is the probability that a female ...

Question 1 many high school students take the ap tests in

Question 1. Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year,of the 211,693 students who too ...

Hayley motorcycle company just paid a dividend of 14 today

Hayley Motorcycle Company just paid a dividend of $1.4 today, and is expected to pay a dividend in year 1 of $1.8, a dividend in year 2 of $2.3, a dividend in year 3 of $2.9, and a dividend in year 4 of $3.8. After year ...

I a survey of 400 adults that say traffic is a problem

In a survey of 400 adults that say traffic is a problem: East reported 36% is a problem, South 33% problem, Midwest 26% problem and West 55% problem. (a) The 95% confidence interval for the proportion from the West say t ...

In the health abc studynbsp522nbspsubjects owned a pet

In the Health ABC Study, 522 subjects owned a pet and 1968 subjects did not. Among the pet owners, there were 297 women; 961 of the non-pet owners were women. Find the proportion of pet owners who were women. Do the same ...

Find the modified internal rate of return mirr for the

Find the modified internal rate of return (MIRR) for the following series of future cash flows if the company is able to reinvest cash flows received from the project at an annual rate of 8.24 percent. The initial outlay ...

A company recently had 26 million shares outstanding

A company recently had 26 million shares outstanding trading at $45/share. The company announces its intention to raise $290M by selling new shares. What percentage of the value of the company's existing equity prior to ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert