Determining hypothesis test-difference of proportions

Assignment Help Basic Statistics
Reference no: EM13111356

The general social survey is an annual survey given to about 1,500 U.S. adults selected at random. Each year, the survey contains several questions meant to probe the respondents' views of employment. A recent survey contained the question "How important to your life is having a fulfilling job?" Of the 264 college graduates surveyed, 103 chose the response "very important." Of the 123 people surveyed whose highest level of education was high school or less, 30 chose the response "very important."

Based on these data, can we conclude, at the 0.01 level of significance, that there is a difference between the proportion of U.S. college graduates who would answer "very important" and the proportion of all U.S. adults whose highest level of education was high school or less who would answer "very important"?

Perform a two tailed test.

Reference no: EM13111356

Questions Cloud

Determine if the population regression line slope : Evaluate the following statement- A high r2 means a significant regression. 1. Merely if the sample size is large enough. The t statistic must be consulted to determine if the population regression line slope is considerably different from zero
Which of are considered male secondary sex characteristics : Which of the following are considered male secondary sex characteristics?
Formal hypothesis testing : Can the formal hypothesis testing approach be used for nonparametric tests? How are parametric and nonparametric statistics different?
What recourse, if any does partner have against the bank : What recourse, if any does PARTNER have against the bank. Make sure you review the material for multiple payees and the corresponding code sections before you answer. Include references to code sections in your answer. The answer should be half a pag..
Determining hypothesis test-difference of proportions : The general social survey is an annual survey given to about 1,500 U.S. adults selected at random. Each year, the survey contains several questions meant to probe the respondents' views of employment.
Which of the characteristics are true of spermatogenesis : Which of the following characteristics are true of spermatogenesis?
What evaluation criteria would be utilized select a supplier : Once would you have multiple rounds of bidding? What evaluation criteria would be utilized to initially select a supplier? What criteria are utilized to evaluate supplier performance?
Which of the secondary sex characteristics in females : Which of the following are secondary sex characteristics in females?
Hypothesis test-equal population variances : Each day the major stock markets have a group of leading gainers in price (stocks that go up the most). On one day the standard deviation in the percent change for a sample of 10 NASDAQ leading gainers was 15.8.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Assumption of t-test

When the p-value is used for hypothesis testing, the null hypothesis is rejected if

  Standard deviation of binomial variable

A binomial experiment has 10 trials with a probability of success of 0.62 in each trial. What is the standard deviation of the binomial random variable?

  Anything about the distribution of sample means

Assume if random samples of size n = 9 are selected can we say anything about the distribution of sample means.

  T test for fax cost in in megastat

Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below.

  Construction of the confidence interval using the given data

Construct a 95% confidence interval on the population mean for the following sample data set:

  Define validity and reliability

Define validity and reliability. How can we insure our data is both reliable and valid? Which of these two do you think is the more important?

  Estimating the p-value of post-anesthesia care area

The post-anesthesia care area (recovery room) at St. Luke's Hospital in Maumee, Ohio, was recently enlarged. The hope was that with the enlargement the mean number of patients per day would be more than 25. A random sample of 15 days revealed the ..

  Use of chi-square tests using contingency tables

What are some real life examples of the use of Chi-Square tests using contingency tables? Why is a test, which is testing significant differences among means called Analysis of Variance?

  Graphical approach to cvp analysis

We suggest that you use the graphical approach to CVP analysis to solve the following problem, but you may use any other method to find the answer.

  Null hypothesis and alternate hypothesis-critical value

What is the difference between a null hypothesis and an alternate hypothesis? Explain what is meant by the critical value of a statistical value.

  Average forecast with an exponential smoothing fore-cast

Compare a three-month moving average forecast with an exponential smoothing fore-cast for a = 0.2. Which provides the better forecasts using MSE as the measure of model accuracy?

  Determine mean-standard deviation of sampling distribution

Compute the probability which we will get the sample mean greater than 21; which is , compute P(x > 21). Compute the probability that we will get the sample mean less than 19.385; that is, compute P(x

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