Question

Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative​ hypotheses, test​ statistic, critical​ value(s), and state the final conclusion that addresses the original claim.
A simple random sample of pages from a dictionary is obtained. Listed below are the numbers of words defined on those pages. Given that this dictionary has 1459 pages with defined​ words, the claim that there are more than​ 70,000 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 0.01 level significance level to test this claim. What does the result suggest about the claim that there are more than​ 70,000 defined words in the​ dictionary?

71
50
65
87
55
76
54
44
81
87

Find the Test Statistic

Find Critical Value

Answer 1

Nolliarallesse CH Aleonatve hyratlesc CH: Tesl statislic: us48.0 Cclasm 2.0 X67, S: I5.7339 foor The gvan dala Poom af 48 3.8187 (S.7339 Test statistic Ct) 3.82 Cardicol Valuas Cght doled 4-Coidical Value = 2.821 Desica on: Last stadislic 3-82 2.82 toject HO So concoson: A evidanae to clan thad hesa dafinecl words is han Toeo mote the dickonary