Population proportion of americans-life on other planets

Assignment Help Basic Statistics
Reference no: EM1395285

In a 1997 Marist Institute survey of 935 randomly selected Americans, 60% of the sample answered yes to the question, "Do you think there is intelligent life on other planets?" (a) What is the sample proportion of Americans who believe there is intelligent life on other planets? (b) What is the standard error of the sample proportion? (c) Calculate a 90% CI for the population proportion of Americans who believe there is intelligent life on other planets.

Reference no: EM1395285

Questions Cloud

Assessing the p-value for hypothesis test : using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
Why alcohol effective against some viruses and not others : Occasionally, subjecting a plant to photoflood and a fan will produce a lower rate of transpiration than exposing it solely to a photoflood. Why is alcohol effective against some viruses and not others?
Example of a misleading correlation : Define correlation. Then give an example of a misleading correlation and an example of a meaningful correlation. With this describe the relationship between correlation and causation.
Correlation between two events : Research has shown that the people often see a correlation between two events when one does not really exist. Why do you think this happens?
Population proportion of americans-life on other planets : Calculate a 90% CI for the population proportion of Americans who believe there is intelligent life on other planets.
Correlation and causation in multiple regression : Consider the relationship between yearly wine consumption (litres of alcohol from drinking wine per person) and yearly deaths from heart disease (deaths per 100,000 people) in 19 developed countries.
Expected values of 3-year hybrid car lease : Expected Values of 3-Year Hybrid Car Lease, Beverly Mills has decided to lease a hybrid car to save on gasoline expenses and to do her part to help keep the environment clean
Explain more rapid production of antigen specific antibodies : Describe how the clonal expansion theory explains the more rapid production of antigen specific antibodies, Helper T-cells and Cytotoxic T-cells, during a secondary infection.
Dynamics of toboggan and block on ice : Dynamics of Toboggan and Block on Ice, A 4.0 kg toboggan rests on a frictionless icy surface, and a 2.0 kg block rests on top of the toboggan. The coefficient of static friction µs between the block and the surface of the toboggan is 0.58

Reviews

Write a Review

Basic Statistics Questions & Answers

  Evaluating probability that patient will take drug

Evaluate the probability that patient taking drug will experience flu symptoms.

  Linear relation between degree of stenosis-reactive nuclei

Are you doubtful of any of these data points? if so why does there show to be a linear relation between degree of stenosis and nuber of reactive nuclei?

  Finding expected shape of distribution of sample mean

Find out the expected shape of distribution of sample mean?

  Stepwise regression model summary

A researcher used stepwise regression to create regression models to predict Birthrate (births per 1000) using five predictors:

  Information about scatter plot

Given the following data, 1) how do you make Excel create a scatter diagram for you? 2) If you were to draw a line through the points, how straight would the line be?

  Confidence interval and population mean

Determine a 95% confidence interval for the population mean.

  Illustrate what is the criterion of realism value

Criterion of realism or Hurwitz. Assume that the payoff from an investment depends on market conditions. Illustrate what is the criterion of realism value.

  Explain one sample z test for p-value approach

Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.

  Confidence interval for the true mean

Confidence interval for the true mean and Evaluate the 95% confidence interval for the true mean advertising expense?

  Dummy variable in regression analysis

First, describe in your own words (no direct quotes, please) what a dummy variable is and its purpose in regression analysis. Secondly, provide an example of where you might use a dummy variable from your own professional experience.

  Niagara falls differs from the mean reported by the american

A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...

  Difference in number of circuit cards bought by month

At.05 level of significance can director conclude that there is difference in the number of circuit cards bought by month?

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