Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question: Baseball fans. In a poll taken in March of 2007, Gallup asked 1006 national adults whether they were baseball fans. 36% said they were. A year previously, 37% of a similar-size sample had reported being baseball fans.
a) Find the margin of error for the 2007 poll if we want 90% confidence in our estimate of the percent of national adults who are baseball fans.
b) Explain what that margin of error means.
c) If we wanted to be 99% confident, would the margin of error be larger or smaller? Explain.
d) Find that margin of error.
e) In general, if all other aspects of the situation remain the same, will smaller margins of error produce greater or less confidence in the interval?
f) Do you think there's been a change from 2006 to 2007 in the real proportion of national adults who are baseball fans? Explain.
Management of the raiding firm further believes that the chances for a resignation of the member in question are 0.70. What is the probability of a successful takeover?
the average low temperature for marquette mi in december is 12f. the average low temperature for each of 8 randomly
We have a "test" and a "control" group. We calculated a market share percentage for both groups, the test group was in a market that received advertising from our client, the control group was in a market that did not see advertising.
Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
a citrus farmer has determined that the diameter of its grapefruits are normally distributed with a mean of 4.5 inches
If level of significance ( α ) is 0.005 in two-tail test, how large is non rejection region under curve of the t distribution?
Provide an example from your work or home life; illustrate the difference between the application of descriptive statistics and inferential statistics.
an applicant must score at least 80 points on a particular psychological test to be eligible for the peace corps. from
A real number X is randomly chosen from the interval [0,10], dividing the interval into a left and a right side. Find the probability that the left side is at least four times as big as the right.
Generate 500 different random samples of n = 5 observations. Draw a sketch showing the shape of the histogram of sample means for random samples of n = 5.
What is the point estimate of µ? Round to two decimal places
a study on crime indicated that 3.1 car thefts occur each minute in the usa. assume that the distribution of thefts per
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd