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In Houston suburbs, there are about one million eligible voters. A simple random sample of size 10,000 citizens was chosen to study the relationship between gender and the participation in the last election. The results:
Men Women
Voted 2711 3722
Didn't Vote 1444 2123
If we are testing for a relationship between gender and participation in the last election, what is the p-value and decision at the 5% significance level? Select the [p-value, Decision to Reject (RH0) or Failure to Reject (FRH0)] Cant seem to work out from my notes.
According to a report by Scarborough Research, the average monthly household cellular phone bill is $73. Suppose local monthly household cell phone bills are normally distributed with a standard deviation of $11.
Mean of 29.44 with a standard deviation of 2.86. Conduct a two tailed hypothesis test at a significance level of .05 to see if the two means are different.
Assuming the scores are normally distributed, what percentage of sample means are between 7272and 7474?Round the standard score to the nearest tenth before using the z-score tables. Round the final answer to the nearest hundredth of a percent.
translate the following statements into equivilant formal expressionsa. some things are not owned by anyone.b. some
The article "Measuring the Exposure of Infants to Tobacco Smoke" (New England J. of Medicine, 1984: 1075-1078) reports on a study in which various measurements were taken both from a random sample of infants who had been exposed to household smoke..
project is to provide you with an opportunity to employ in practice the statistical tools and concepts you have learned in this statistics course and to further help
a) Consider the following set of regression equations:
Connie wants to have an annuity payment of $2,000 at the END of every three months. How much should she deposit now at 6% interest, compounded quarterly, to yield this payment for 3 years? (Use Table 12-2 in your text)
What percentage of the observed variation between the actual values of the dependent variable and the mean value of the dependent variable in the sample data set is explained by the regression model?
a. Plot the series. Does the linear trend model or the exponential trend model fit the series best?
we assume that the conditional distribution of xn n is binomial n theta and that n is poisson lambda. show that x has
Let G be a directed graph where c_e is the cost of arc e. If the nodes of G can be assigned feasible potentials then G has no negative dicycle.
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