Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

Compute the sample size for the true proportion. 

The Ohio Department of Agriculture experienced 203 fuel samples across the state in 1999 for accuracy of the reported octane level. For premium score 14 out of 105 samples failed (they didn't meet ASTM specification and the FTC Octane posting rule). How much of samples would be needed to create a 99% confidence interval that is within 0.02 of the true proportion of premium grade fuel-quality failures?

A. 4148
B. 2838
C. 1913
D. 744
E. 54

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923328

Have any Question?


Related Questions in Statistics and Probability

A brewery pulls 905 bottles of beer to sample them for

A brewery pulls 905 bottles of beer to sample them for quality control . in the past there has been a 0.12 probability that a bottle of beer is defective. Assuming this trend continues, what is the probability that fewer ...

A puck company wants to sponsor the players with the 20

A puck company wants to sponsor the players with the 20% quickest goals in hockey games. The times of first goals are normally distributed with a mean of 8.54 minutes and a standard deviation of 4.91 minutes. How fast wo ...

Express courier service has found that the delivery time

Express Courier Service has found that the delivery time for packages is normally distributed with mean 14 hours and standard deviation 2 hours. a. What percent of the packages will be delivered in less than 18 hours? b. ...

A chemical company is interviewing two people to become its

A chemical company is interviewing two people to become its risk manager. One has a background of management positions chemical refineries. The other has a background providing risk management consulting services to depa ...

1 what is the standard deviation of the sampling

1. What is the standard deviation of the sampling distribution? 2. What is the expected value? 3. What is the probability that the average life in the sample will be between 2,670.56 and 2,809.76 hours? 4. What is the pr ...

For the following two questions please determine the

For the following two questions, please, determine the correct hypothesis test, state the null and research hypotheses in words and in symbols, then conduct the hypothesis test, and report the results in writing. 1. A re ...

Suppose a researcher is interested in the number of good

Suppose a researcher is interested in the number of good versus bad dreams that students have during final exam week. The researcher states that  p  = 0.52 that a student will have a bad dream during final exam week. (a) ...

Let x be a continuous random variable suppose that we know

Let X be a continuous random variable. Suppose that we know that Pr(X 5), and how do you know? (Hint: X is not necessarily normally distributed, but you can still consider how much area is under the curve, no matter the ...

Follow up -lock box systems or regional collection

Follow Up -Lock Box Systems or Regional Collection Centers One way a business can speed up collections is Lock Box Systems or Regional Collection Centers. Explain how these can be used to speed up collections.

A researcher records the following body mass index bmi

A researcher records the following body mass index (BMI) scores for a group of participants: 29.1 1.3 (M SD). Participants who score between 26 and 30 on this scale are categorized as overweight. What proportion of parti ...

  • 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