Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She randomly selects 80 female students from her high school. She finds that 9 out of 80 students are either pregnant now or have been pregnant previously.

a. What statistical test should be used to analyze the data?
b. Identify H0 and Ha for this study
c. Conduct the appropriate analysis
d. Should H0 be rejected? What should the researcher conclude?

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M9111400

Have any Question?


Related Questions in Statistics and Probability

Help me study by answering this question a stock is just

Help me study by answering this question. A stock is just paid a dividend of $0.91 and is growing at a constant rate of 10 percent per year. If the required rate of return is 15 percent, what is the stock's expected pric ...

Jennifers broker has shown her two options in the

Jennifer's broker has shown her two options in the securities market for investment. Security one is a bond of par value of $1,000. The bond has a coupon interest rate of 11% paid annually maturing in seven years, with y ...

Question a gamble is said to be fair if each player has the

Question: A gamble is said to be fair if each player has the same expected outcome. Suppose we play a game in which the first of two players receives $50 each time the roll of a balanced die comes up with a 1 or 6. Playe ...

You are the foreman of the bar-s cattle ranch in colorado a

You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let  x  be the age ...

This table summarizes the results from alongtermrandomized

This table summarizes the results from along+termrandomized clinicaltrial to  determine whether aspirin reduces the risk of heart attack. Researchers  randomly assigned a large sample of healthy male physicians (22,071) ...

Given the following information from pharoah corporation

Given the following information from Pharoah Corporation, what price would the CAPM predict that the company's stock will trade for one year from today?  (Do not round intermediate calculations. Round final answer to 2 d ...

A company is considering replacing its fleet of jets with

A company is considering replacing its fleet of jets with new ones, but only if they can reduce 5 days off the current 30 day delivery time. The company has purchased 5 new jets and done a sample of 15 trips. The sample ...

Question probability and nonprobability are the two general

Question Probability and nonprobability are the two general categories of sampling. Probability sampling uses random selection, whereas nonprobability sampling does not. For example, if you wanted to study the effects of ...

What percent of the measurements are found below the 30th

What percent of the measurements are found below the 30th percentile? Found above the 30th percentile? For the regression line y^ = 3x + 2 what is the best predicted value if x is 7? Assume that male and female births ar ...

In a survey of 3175 adults1487 say they have paid their

in a survey of 3175 adults,1487 say they have paid their bills online in the last year. construct a 99% confidence interval for the population proportion.

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As