Mathematics, 19.01.2022 05:30, natalie2sheffield
The amount that households pay service providers for access to the Internet varies quite a bit, but the mean monthly fee is $38 and the standard deviation is $10. The distribution is not Normal: many households pay a base rate for low-speed access, but some pay much more for faster connections. A sample survey asks an SRS of 500 households with Internet access how much they pay. Let¯x be the mean amount paid.
(a) What are the mean and standard deviation of the sampling distribution of¯x ?
(b) Explain why you can't determine the probability that the amount a randomly selected household pays for access to the Internet exceeds $55.
(c) What is the shape of the sampling distribution of x? Justify your answer.
(d) Find the probability that the average fee paid by the sample of households exceeds $55.
Answers: 3
Mathematics, 21.06.2019 21:00, izaiahfieods
Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list
Answers: 1
Mathematics, 21.06.2019 23:20, tsedeneyaalemu2924
Write the equations in logarithmic form 10^3=1,000
Answers: 1
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