A random sample of 25 adult male wolves from the Canadian Northwest Territories gave an average weight x, = 97.8 pounds with estimated sample standard deviation s, = 6.3 pounds. Another sample of 29 adult male wolves from Alaska gave an average weight x, = 89.8 pounds with estimated sample standard deviation s, = 6.7 pounds. (a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means µ1 - H2, or difference of proportions p1 - P2. Then solve the problem. O H1 - 42 O p O P1 - P2
A random sample of 25 adult male wolves from the Canadian Northwest Territories gave an average weight x, = 97.8 pounds with estimated sample standard deviation s, = 6.3 pounds. Another sample of 29 adult male wolves from Alaska gave an average weight x, = 89.8 pounds with estimated sample standard deviation s, = 6.7 pounds. (a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means µ1 - H2, or difference of proportions p1 - P2. Then solve the problem. O H1 - 42 O p O P1 - P2
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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How would you figure these two problems out?

Transcribed Image Text:A random sample of 25 adult male wolves from the Canadian Northwest Territories gave an average weight x, = 97.8 pounds with estimated sample standard deviation s, = 6.3 pounds.
Another sample of 29 adult male wolves from Alaska gave an average weight x, = 89.8 pounds with estimated sample standard deviation s, = 6.7 pounds.
(a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means H1 - H2, or difference of proportions p1 - P2. Then solve the
problem.
O H1 - 42
p
O P1 - P2
(b) Let u, represent the population mean weight of adult male wolves from the Northwest Territories, and let u, represent the population mean weight of adult male wolves from
Alaska. Find a 95% confidence interval for u1 - H2. (Use 1 decimal place.)
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Transcribed Image Text:interview and a telephone interview. A random sample of 100 people were asked the voter registration question face to face. Of those sampled, seventy-six respondents gave accurate
answers (as verified by city records). Another random sample of 84 people were asked the same question during a telephone interview. Of those sampled, seventy-three respondents
gave accurate answers. Assume the samples are representative of the general population.
(a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means u1 - Hz, or difference of proportions p1 - P2. Then solve the
problem.
O P1 - P2
p
O H1 - 42
(b) Let p, be the population proportion of all people who answer the voter registration question accurately during a face-to-face interview. Let p, be the population proportion of
all people who answer the question accurately during a telephone interview. Find a 90% confidence interval for p, - p2. (Use 3 decimal places.)
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Two-Sample T-Test for the population mean:
It is the hypothesis testing done for determining the mean difference between two sets of observations. As the name says it is paired t-test, the data of both samples are considered for the complete hypothesis testing and the test statistics will be found from those data.
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