A simple random sample of 20 pages from a dictionary is obtained. The numbers of words defined on those pages are found, with the results n= 20, x = 59.7 words, s= 15.4 words. Given that this dictionary has 1467 pages withdefined words, the claim that there are more than 70,000 defined words is equivalent to the claim that the mean number of words per page is greater than 47.7 words. Use a 0.05 significance level to test the claim that the meannumber of words per page is greater than 47.7 words. What does the result suggest about the claim that there are more than 70,000 defined words? Identify the null and alternative hypotheses, test statistic, P-value, and state thefinal conclusion that addresses the original claim. Assume that the population is normally distributed.What are the null and alternative hypotheses?O A. Ho: H= 47.7 wordsO B. H,: µ> 47.7 wordsH,: µ< 47.7 wordsH4: u< 47.7 wordsO C. Ho: µ= 47.7 wordsH: µ# 47.7 wordsD. H,: µ= 47.7 wordsH: µ> 47.7 wordsDetermine the test statistic.(Round to two decimal places as needed.)

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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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Suppose an instructor would like to know if there is difference in the performance of her two courses of 560 students each. She proceeds to take a random sample of size 50 from each independent class and was able to establish the following results: mean SD Class 1 86 17 Class 2 78 15 Is there a significant difference between the two classes at a significance level of five percent?
Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of measurements yield x = 99.37, y = 98.55, r=0.859, P-value = 0.000, and y = 10.94 +0.88x, where x represents the IQ score of the older child. Find the best predicted value of y given that the older child has an IQ of 105? Use a significance level of 0.05. 10CritPearson.pdf O A. 98.55 OB. 0.88 O C. 99.37 O D. 103.34
A simple random sample of 10 pages from a dictionary is obtained. The numbers of words defined on those pages are found, with the results n= 10, x= 64.9 words, s = 15.9 words. Given that this dictionary has 1476 pages with defined words, the claim that there are more than 70,000 defined words is equivalent to the claim that the mean number of words per page is greater than 47.4 words. Use a 0.10 significance level to test the claim that the mean number of words per page is greater than 47.4 words. What does the result suggest about the claim that there are more than 70,000 defined words? Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Assume that the population is normally distributed. %D What are the null and alternative hypotheses? O A. Ho: H=47.4 words H: µ 47.4 words O C. Ho: H= 47.4 words D. Ho: H>47.4 words H,: µ<47.4 words H1: µ#47.4 words Determine the test statistic. (Round to two decimal…
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A simple random sample of 10 pages from a dictionary is obtained. The numbers of words defined on those pages are found, with the results n= 10, x= 57.1 words, s = 16.5 words. Given that this dictionary has 1477 pages with defined words, the claim that there are more than 70,000 defined words is equivalent to the claim that the mean number of words per page is greater than 47.4 words. Use a 0.01 significance level to test the claim that the mean number of words per page is greater than 47.4 words. What does the result suggest about the claim that there are more than 70,000 defined words? Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Assume that the population is normally distributed. What are the null and alternative hypotheses? O B. H,: µ= 47.4 words H: µ# 47.4 words O A. Ho: µ> 47.4 words H,: µ 47.4 words H,: µ< 47.4 words Determine the test statistic. 1.86 (Round to two decimal places as…
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