Mathematics, 17.12.2019 01:31 hnsanders00
Amagazine conducts an annual survey in which readers rate their favorite cruise ship. all ships are rated on a 100-point scale, with higher values indicating better service. a sample of 35 ships that carry fewer than 500 passengers resulted in an average rating of 85.82, and a sample of 44 ships that carry 500 or more passengers provided an average rating of 81.90. assume that the population standard deviation is 4.55 for ships that carry fewer than 500 passengers and 3.97 for ships that carry 500 or more passengers. (a) what is the point estimate of the difference between the population mean rating for ships that carry fewer than 500 passengers and the population mean rating for ships that carry 500 or more passengers? (use smaller cruise ships − larger cruise ships.)
Answers: 1
Mathematics, 21.06.2019 18:40, ferny5106
Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form: science fiction books to history books 2. write the ratios as fractions: dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.
Answers: 1
Mathematics, 21.06.2019 23:10, andrewlawton8125
Carly stated, “all pairs of rectangles are dilations.” which pair of rectangles would prove that carly’s statement is incorrect?
Answers: 1
Mathematics, 22.06.2019 00:00, colemanjosiah03
Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59 a. 14%, 62%, 23% b. 15%, 60%, 35% c. 10%, 70%, 20% d. 11%, 62%, 27%
Answers: 3
Amagazine conducts an annual survey in which readers rate their favorite cruise ship. all ships are...
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