A random sample of 20 wolf litters in Ontario, Canada, gave an average of x, = 4.4 wolf pups per litter, with estimated sample standard deviation s, = 1.3. Another random sample of 5 wolf litters in Finland gave an average of x, = 2.4 wolf pups per litter, with sample standard deviation s, = 1.4. (a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means µ - H2, or difference of proportions p1 - P2. Then solve the problem. O P1- P2 O H1- 42 (b) Find an 99% confidence interval for 4, - H2, the difference in population mean litter size between Ontario and Finland. (Use 1 decimal place.) lower limit unner limit
A random sample of 20 wolf litters in Ontario, Canada, gave an average of x, = 4.4 wolf pups per litter, with estimated sample standard deviation s, = 1.3. Another random sample of 5 wolf litters in Finland gave an average of x, = 2.4 wolf pups per litter, with sample standard deviation s, = 1.4. (a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means µ - H2, or difference of proportions p1 - P2. Then solve the problem. O P1- P2 O H1- 42 (b) Find an 99% confidence interval for 4, - H2, the difference in population mean litter size between Ontario and Finland. (Use 1 decimal place.) lower limit unner limit
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Transcribed Image Text:A random sample of 20 wolf litters in Ontario, Canada, gave an average of x, = 4.4 wolf pups per litter, with estimated sample standard deviation s, = 1.3. Another random sample
of 5 wolf litters in Finland gave an average of x, = 2.4 wolf pups per litter, with sample standard deviation s, = 1.4.
(a) Categorize the problem below according to parameter being estimated, proportion p, mean u, difference of means u1 - H2, or difference of proportions p1 - P2. Then
solve the problem.
O P1 - P2
O H1 - 42
O p
(b) Find an 99% confidence interval for u, - H2, the difference in population mean litter size between Ontario and Finland. (Use 1 decimal place.)
lower limit
upper limit
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