Question

You may need to use the appropriate appendix table to answer this question.

Suppose that the mean daily viewing time of television is 8.35 hours. Use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household

(a)

What is the probability that a household views television between 5 and 12 hours a day? (Round your answer to four decimal places.)

(b)

How many hours of television viewing must a household have in order to be in the top 4% of all television viewing households? (Round your answer to two decimal places.)

(c)

What is the probability that a household views television more than 3 hours a day? (Round your answer to four decimal places.)

Answer #1

You may need to use the appropriate appendix table to answer
this question. Television viewing reached a new high when the
Nielsen Company reported a mean daily viewing time of 8.35 hours
per household.† Use a normal probability distribution with a
standard deviation of 2.5 hours to answer the following questions
about daily television viewing per household.
(a) What is the probability that a household views television
between 3 and 11 hours a day? (Round your answer to four decimal...

Television viewing reached a new high when the global
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views television between 3 and 10 hours a day (to 4 decimals)?
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You may need to use the appropriate appendix table or technology
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Although studies continue to show smoking leads to significant
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(b)What is the probability that fewer than 80 smoke? Use the
normal approximation of the binomial distribution to answer this
question. (Round your answer to four decimal places.)
(c)What is the probability that from 95 to 100 smoke? Use the
normal...

You may need to use the appropriate appendix table to answer
this question. Alexa is the popular virtual assistant developed by
Amazon. Alexa interacts with users using artificial intelligence
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You may need to use the appropriate appendix table to answer
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(a) What is the probability that the cost will be more than
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You may need to use the appropriate appendix table to answer
this question.
The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(b)What is the probability that a student will complete the exam
in more than...

You may need to use the appropriate appendix table or technology
to answer this question. A population has a mean of 200 and a
standard deviation of 50. Suppose a sample of size 100 is selected
and x is used to estimate μ. (Round your answers to four decimal
places.)
(a) What is the probability that the sample mean will be within
±5 of the population mean?
(b) What is the probability that the sample mean will be within
±10...

You may need to use the appropriate appendix table to answer
this question.
Given that z is a standard normal random variable,
compute the following probabilities. (Round your answers to four
decimal places.)
(a)
P(−1.96 ≤ z ≤ 0.49)
(b)
P(0.52 ≤ z ≤ 1.24)
(c)
P(−1.75 ≤ z ≤ −1.02)
Pls explain how you did it

v
You may need to use the appropriate appendix table to answer
this question.
The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)
What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(c)
Assume that the class has 90 students and that the examination...

You may need to use the appropriate appendix table or technology
to answer this question.
Market-share-analysis company Net Applications monitors and
reports on internet browser usage. According to Net Applications,
in the summer of 2014, Google's Chrome browser exceeded a 20%
market share for the first time, with a 20.37% share of the browser
market.† For a randomly selected group of 20 Internet browser
users, answer the following questions. (Round your answers to four
decimal places.)
(a)
Compute the probability...

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