**Transcription for Educational Use**---3. A random sample of 17 wolf litters in Ontario gave an average of \(\bar{x}_1 = 4.9\) wolf pups per litter, with estimated sample standard deviation \(s_1 = 10\). Another random sample of 6 wolf litters in Finland gave an average of \(\bar{x}_2 = 2.8\) wolf pups per litter with sample standard deviation \(s_2 = 12\).a. Find an 85% confidence interval for \(\mu_1 - \mu_2\), the difference in population mean litter size between Ontario and Finland.b. Examine the confidence interval and explain what it means in the context of the problem. Does the interval consist of numbers that are all positive? all negative? (In other words, at the 85% level of confidence, does it appear that the average litter size of wolf pups in Ontario is greater than the average litter size in Finland?)--- *Note: Variables and symbols such as \(\bar{x}\), \(\mu\), and \(s\) represent sample means, population means, and standard deviations respectively.*

Answered: Image /qna-images/answer/f29ae6c1-060a-47a8-aca4-4005bba05866.jpg

Answered: 3. A random sample of 17 wolf litters…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A research article reported that for a random sample of 850 meal purchases made at fast food chain A, the mean number of calories was 1,004, and the standard deviation was 489. For a random sample of 2,108 meal purchases made at fast food chain B, the mean number of calories was 905, and the standard deviation was 622. Based on these samples, is there convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases? (Test the relevant hypotheses using a 0.05 level of significance. Use ?1 for fast food chain B and ?2 for fast food chain A.) State the appropriate null and alternative hypotheses. Find the test statistic and P-value. (Use SALT. Round your test statistic to one decimal place and your P-value to three decimal places.) t= P-value= State the conclusion in the problem context. We fail to reject H0. There is convincing evidence that the mean number of calories in fast food…

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