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The American Community Survey (ACS) replaced the census "long form" starting with the 2010 census.
The main part of the ACS contacts 250,000 addresses by mail each month, with follow-up by phone and in person if there is no response. Each household answers questions about their housing, economic, and social status. What is the Population.
Evaluate the result in part c with the decision using the expected value approach.
You are given following information on residents' responses, broken down by sex. Determine the probability that resident is a man and opposes the bridge?
1) What is correlation? 2) What is an example of two variables that are likely to be correlated because they are both changing over time?
If desired confidence level is 95 percent, suitable critical value is?
Produce the scatter plot for sodium and bp. Do you think there are any outliers?
Test the whether the attitude toward keeping weight down associated with smoking status.
A new speed limit will be initiated such that approximately 10% of vehicles will be over the speed limit. What is the new speed limit based on this criterion? In what way do you think the actual distribution of speeds differs from a normal distribu..
Q2 is dummy variable equal to 1 in second quarter and 0 otherwise; and Q3 is final dummy variable equal to 1 in third quarter and 0 otherwise. Determine the Base Quarter?
Problems on Sampling Variability and Standard Error and Confidence Intervals
Carry out the suitable hypothesis test, at alpha = .05, to find out whether there is a relationship between school/work and stress.
What is the 95% confidence interval for the proportion of all delinquent customer accounts at this manufacturing company?
You run a two tail t-test. The critical value for this test at the .05 level is a t of 7.82. What value must the obtained t-test statistic be in order to be considered significant at the .05 level?
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