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The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below.Age (years)Percent of Canadian Population Observed Number in the VillageUnder 5 7.2% 49 5 to 14 13.6% 85 15 to 64 67.1% 273 65 and older 12.1% 48 Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age distribution of the residents of Red Lake Village.
(a) What is the level of significance?
State the null and alternate hypotheses.
H0: The distributions are the same.H1: The distributions are the same. H0: The distributions are the same.H1: The distributions are different. H0: The distributions are different.H1: The distributions are the same. H0: The distributions are different.H1: The distributions are different.
(b) Find the value of the chi-square statistic for the sample. (Round your answer to three decimal places.)
Are all the expected frequencies greater than 5?
Yes No
What sampling distribution will you use?
Student's t binomial uniform chi-square normal
What are the degrees of freedom?
Two diamonds diamonds are chosen at random. What is the probability that both diamonds diamonds are industrial dash grade industrial-grade??
a. Fit a simple linear regression model by ordinary least squares and obtain the residuals. Also obtain s{b0} and s{b1}. b. Plot the residuals against time and explain whether you find any evidence of positive autocorrelation.
Best's Review (June 1999) compared the mortgage loan portfolios for a sample of 25 life health insurance companies. The information in the table on page 629 is extracted from the article.
a) Draw a scatter diagram. b) Does the relationship look linear?
The probability of each individual being selected is given in the following table. Find the probability that a freshman is selected.
q1. suppose that x xijnx2 is an observed data matrix from a bivariate normal distribution nmusigma2i where i is the 2
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1. a government watchdog association claims that 70 of people in the u.s. agree that the government is inefficient and
considering the distribution of measures on a difficult exam you would expect to find the greatest density of scores.a.
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Compute the M-W U and test it for significance. What does your decision mean in the context of the exercise?
Where ranges are given as choices, pick the correct range. For example, if you calculate a probability to be .27, you would pick .2-.3.
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