3. A simple random sample of 10 pages from Merriam- Webster's Collegiate Dictionary is obtained. The numbers of words defined on those pages are found, with a mean of 53.3 words per page and standard deviation of 15.7 words. Given that this dictionary has 1459 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 48.0 words. Assume a normally distributed population. Use a 0.01 significance level to test the claim that the mean number of words per page is greater than 48.0 words. What does the result suggest about the claim that there are more than 70,000 defined words?
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The null hypothesis (H0) is that the mean number of words per page is equal to 48.0 words. The alternative hypothesis (H1) is that the mean number of words per page is greater than 48.0 words. Show more…
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"Question 3 A simple random sample of 10 pages from Merriam-Webster's Collegiate Dictionary is obtained: The numbers of words defined on those pages are found, with a mean of 53.3 words per page and standard deviation of 15.7 words. Given that this dictionary has 1459 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 48.0 words Assume a normally distributed population. Use a 0.01 significance level to test the claim that the mean number of words per page is greater than 48.0 words What does the result suggest about the claim that there are more than 70,000 defined words? Enter Answer"
Madhur L.
A simple random sample of 10 pages from a dictionary is obtained and the number defined words on each page is recorded. The sample mean is found to be 53.5 definitions per page and a standard deviation of 15.7 definitions per page. To support a claim that there are more than 70000 defined words is the same as the claim that the mean number of defined words on a page is greater than 48.0. Use a 0.05 significance level to test this claim.
Ajiboye T.
At a large university, in the never-ending quest for a satisfactory textbook, the Statistics Department has tried a different text during each of the last three quarters. During the fall quarter, 500 students used the text by Professor Mean; during the winter 300 students used the text by Professor Median; and during the spring tharter, 200 students used the text by Professor Mode. A survey at the end of each quarter showed that 200 students were satisfied with Mean's book, 150 were satisfied with Median's book, and 160 were satisfied with Mode's book. If a student who took statistics during one of these quarters is selected at random and admits to having been satisfied with the text, is the student most likely to have used the book by Mean, Median, or Mode? Who is the least likely author? [Hint: Dree-diagram or use Bayes' theorem. $.$ .
Probability
Conditional Probability
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