Find the probability that a sample proportion

Assignment Help Basic Statistics
Reference no: EM132495783

Recall the use of data from the National Health Survey to estimate behaviors such as alcohol consumption, cigarette smoking, and hours of sleep for all U.S. adults. In the 2005-2007 report, they estimated that 30% of all current smokers started smoking before the age of 16.

Suppose that we randomly select 100 U.S. adults who are smokers and find that 25% of this sample started smoking before the age of 16. Is this much error surprising? Find the probability that a sample proportion will be an over- or underestimate of the parameter by more than 5%.

Reference no: EM132495783

Questions Cloud

Calculate the sample mean and sample standard deviation : Suppose a company of table salt claims that the net weight of salt is more than 1 kg. Ten measurements (in kg) are listed as follow:
Confidence interval in the difference of the means : Find a 95% confidence interval in the difference of the means. Use technology to find the critical value using df = 50.6214 and round answers to 4 decimal place
Estimate the population mean : A population standard deviation is estimated to be 8. We want to estimate the population mean within 0.9,
What is the highest alpha value : What is the highest alpha value for which you could conclude that the observed average rate is not significantly different from $ 235?
Find the probability that a sample proportion : Find the probability that a sample proportion will be an over- or underestimate of the parameter by more than 5%.
What is the correct decision rule : What is the correct decision rule? Reject H0 in favour of H1 if the computed value of the statistic is greater than 2.17.Reject H0 in favour of H1
Find the mean and standard error of the mean : Use the central limit theorem to find the mean and standard error of the mean of the indicated sampling distribution.
Issues with using null hypothesis significance testing : Using support from Wasserstein and colleagues (2019), discuss ways in which Bayesian Statistics can address some of these issues
What is null hypothesis significance testing : What is null hypothesis significance testing? What are some of the issues with using null hypothesis significance testing?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Require conversion of dollars to british pounds

Effective Yield Rollins, Inc., has $3 million in cash available for 180 days. It can earn 7 percent on a U.S. Treasury bill or 9 percent on a British Treasury bill.

  Normal distribution-raw scores

Assume we have a population of scores with mean (mu) of 200 and standard deviation (sigma) of 10. Assume that the distribution is normal. Provide answers to the following questions:

  Calculate the value of the test statistic t

a. Specify the null and alternative hypotheses to test the diet center's claim. b. Calculate the value of the test statistic T.

  Correlation between variables

Demonstrates clearly and fully the ability to use Excel to perform the correlation for the data set.

  Calculate the coefficient of determination

Calculate the coefficient of determination, given that the linear correlation coefficient, r, is -0.625. What does this tell you about the explained variation and the unexplained variation of the data about the regression line?

  The second subsystem consists of two components in parallel

a product is made up of two subsystems in series. the first subsystem consists of 15 components in series. the second

  Question regarding the poportion of ratios

The price-earnings ratios of a sample of stocks have a mean value of 13.5 and a standard deviation of 2. if the ratios have a bell-shaped distribution, what can we say about the poportion of ratios that fall between 9.5 and 17.5?

  Lower limit of the confidence interval-aaa batteries

Lifetimes of AAA batteries are approximately normally distributed. A manufacturer wants to estimate the standard deviation of the lifetime of the AAA batteries

  Plant with transfer function

Given a plant with transfer function (s) = (s - 1)/(s2 - 4), find a compensator in the unity-feedback configuration so that the overall system has desired poles

  The life expectancy of point-of-sale pos terminals is

the life expectancy of point-of-sale pos terminals is normally distributed with a mean of 4 years and a standard

  Determine the sampling distribution of x

Determine the sampling distribution of X. x 30 37.5 45 47.5 55 65 p(x) Calculate E(X). E(X) = oz Compare E(X) to µ. E(X) > µ E(X)

  Probability that neither computer system will be operational

For a typical telephone order, determine the probability that neither computer system will be operational.- both computer systems will be operational.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd