T7.12. The amount that households pay service providersfor access to the Internet varies quite a bit, but the mean monthly fee is $28 and the standard deviation is $10. Thedistribution is not Normal: many households pay about $10for limited dial-up access or about $30 for unlimited dial-upaccess, but some pay much more for faster connections. Asample survey asks an SRS of 500 households with Inter-net access how much they pay. Let x be the mean amountpaid.(a) Explain why you can't determine the probability thatthe amount a randomly selected householdto the Internet exceeds $29.рaysfor access(b) What are the mean and standard deviation of thesampling distribution of x?(c) What is the shape of the sampling distribution of x?Justify your answer.(d) Find the probability that the average fee paid by thesample of households exceeds $29. Show your work.

Dear students as per guidelines we answer the first three subparts only when multiple different…

Answered: T7.12. The amount that households pay…

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T7.12. The amount that households pay service providers for access to the Internet varies quite a bit, but the mean

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter9: Systems Of Linear Equations

Section9.5: Multiplication With The Addition-or-subtraction Method

Problem 8MRE

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Question

T7.12. The amount that households pay service providers
for access to the Internet varies quite a bit, but the mean

monthly fee is $28 and the standard deviation is $10. The
distribution is not Normal: many households pay about $10
for limited dial-up access or about $30 for unlimited dial-up
access, but some pay much more for faster connections. A
sample survey asks an SRS of 500 households with Inter-
net access how much they pay. Let x be the mean amount
paid.
(a) Explain why you can't determine the probability that
the amount a randomly selected household
to the Internet exceeds $29.
рays
for access
(b) What are the mean and standard deviation of the
sampling distribution of x?
(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 $29. Show your work.

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