A researcher conducts a study of white and black attitudes

Assignment Help Basic Statistics
Reference no: EM13637541

A researcher conducts a study of white and black attitudes toward the police in her community.

The percentage of white respondents (N = 300) who say they have a favorable attitude toward the police is 55% with a 95% confidence interval of +/- 5.6%. The percentage of black respondents (N = 250) who say they have a favorable attitude toward the police is 41% +/- 6.1%.

You are asked if there is a real difference between the percentage of whites and blacks who have a positive attitude toward the police in the larger population, or is this sample difference likely to have occurred by random chance or sampling error.

How do you respond? Explain your answer.

Reference no: EM13637541

Questions Cloud

The filament in an incandescent light bulb is made from : the filament in an incandescent light bulb is made from tungsten resistivity 5.6 x 10-8 omiddotm. the light bulb is
The acid dissociation constant for benzoic acidc6h5co2h is : the acid dissociation constant for benzoic acidc6h5co2h is 6.5x10-5.determine the equillibrium constant of each species
Find the charge on an oil drop weighing 318 x 10-14 n and : millikan measured the electrons charge by observing tiny charged oil drops in an electric field. each drop had a charge
Write the aldol product that would be obtained if : 1 write the aldol product that would be obtained if dibenzylketone condensed with itself. only a single condensation.
A researcher conducts a study of white and black attitudes : a researcher conducts a study of white and black attitudes toward the police in her community.the percentage of white
A 100kg pure iron block at 27 degrees c is dropped into an : a 100kg pure iron block at 27 degrees c is dropped into an insulated rigid tank that contains 0.1m3 of unused engine
Explain the difference between the information given by a : explain the difference between the information given by a test of statistical significance such as chi square and a
Estimate the rate of heat loss due to radiation from a : estimate the rate of heat loss due to radiation from a covered pot water 95 c .how does this compare with the 60 w lost
A rocket is launched at an angle of 500deg above the : a rocket is launched at an angle of 50.0deg above the horizontal with an initial speed of 101 ms. the rocket moves for

Reviews

Write a Review

Basic Statistics Questions & Answers

  Compute the return to risk ratio

Compute the Return to Risk Ratio (RRR). On the basis of the results of (A) - (C), which action should the vendor take - sell soft drinks or ice cream? Why?

  Description of quadratic inequality

Solve inequality and graph the solution. Please explain how to how to solve this linear graph

  Assuming all conditions are met test the claim that there

the times in minutes to assemble a computer component for 3 different machines are listed in the table below. workers

  What score was earned by more students than any other score

Assume that the distribution is normal. Based on the Empirical Rule, how many students scored between 69 and 89?

  Find randomly selected patients at most two will survive

Use normal approximation to the binomial distribution to determine the answer if this probability cannot be determined explain why.

  Computing the z scores for the given data

For a normal distribution, find the z-score value that separate the middle 90% of the distribution from the 10% in the tails.

  What is the difference between using a hypothesis test

What is the difference between using a hypothesis test to solve a problem and using an Analysis of Variance test (ANOVA) to solve a problem? Give an example of each.

  Information about a regression analysis includes an

information about a regression analysis includes an intercept of 59.99 and a negative slope of 1.49. make a prediction

  Is there evidence to reject manager-s claim at alpha

Sstandard deviation was found to be 3.3 minutes. Is there evidence to reject the manager's claim at alpha =.02? Perform an appropriate hypothesis test.

  Find the probability that x be greater than y

Let = the sample mean of the 100 scores from University X, and = the sample mean of the 100 scores from University Y. What is the probability that will x be greater than y?

  Compute the p-value and test the hypothesis

Compute the p-value; and at 95% confidence, test the hypothesis. Assume the population is normally distributed. Compute the test statistic.

  Emperical rule and chebyshev rule

I never understood the concept of the Empirical Rule and Chebyshev's Rule. Can you explain it to me and provide me with some sample problems please?

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