Question

Does the kid factor make a difference? If you are talking photography, the answer may be yes! Ages of children in household, years Under 2 None under 21 Percent of U.S. households that buy film 70% 35% Let us say you are a market research person who interviews a random sample of 9 households. (a) Suppose you interview 9 households with children under the age of 2 years. Let r represent the number of such households that buy film. Make a histogram showing the probability distribution of r for r = 0 through r = 9. Maple Generated Plot Maple Generated Plot Maple Generated Plot Maple Generated Plot Correct: Your answer is correct. Find the mean and standard deviation of this probability distribution. (Round your answers to two decimal places.) μ = .2157 Incorrect: Your answer is incorrect. households σ = .0878 Incorrect: Your answer is incorrect. households (b) Suppose that the 9 households are chosen to have no children under 21 years old. Let r represent the number of such households that buy film. Make a histogram showing the probability distribution of r for r = 0 through r = 9. Maple Generated Plot Maple Generated Plot Maple Generated Plot Maple Generated Plot Correct: Your answer is correct. Find the mean and standard deviation of this probability distribution. (Round your answers to two decimal places.) μ = households σ = households (c) Compare the distributions in parts (a) and (b). You are designing TV ads to sell film. Could you justify featuring ads of parents taking pictures of toddlers? Explain your answer. Yes. It appears that households with children under 2 are more likely to buy film. Yes. It appears that households with no children under 21 are more likely to buy film. No. It appears that households with children under 2 are more likely to buy film. No. It appears that households with no children under 21 are more likely to buy film. Correct: Your answer is correct.

Answer #1

State Farm Insurance studies show that in Colorado, 65% of the
auto insurance claims submitted for property damage were submitted
by males under 25 years of age. Suppose 12 property damage claims
involving automobiles are selected at random
. (a) Let r be the number of claims made by males under age 25.
Make a histogram for the r-distribution probabilities. Maple
Generated Plot Maple Generated Plot Maple Generated Plot Maple
Generated Plot
(b) What is the probability that seven or...

USA Today reported that about 20% of all people in the United
States are illiterate. Suppose you take nine people at random off a
city street. (a) Make a histogram showing the probability
distribution of the number of illiterate people out of the nine
people in the sample. Maple Generated Plot Maple Generated Plot
Maple Generated Plot Maple Generated Plot Correct: Your answer is
correct. (b) Find the mean and standard deviation of this
probability distribution. (Round your answers to...

There are five balls in an urn. They are identical except for
color. Two are red, two are blue, and one is yellow. You are to
draw a ball from the urn, note its color, and set it aside. Then
you are to draw another ball from the urn and note its color. (a)
Make a tree diagram to show all possible outcomes of the
experiment. Maple Generated Plot Maple Generated Plot Maple
Generated Plot Maple Generated Plot Correct: Your...

What is the income distribution of super shoppers? A supermarket
super shopper is defined as a shopper for whom at least 70% of the
items purchased were on sale or purchased with a coupon. In the
following table, income units are in thousands of dollars, and each
interval goes up to but does not include the given high value. The
midpoints are given to the nearest thousand dollars. Income range
5-15 15-25 25-35 35-45 45-55 55 or more Midpoint x...

What is the income distribution of super shoppers? A supermarket
super shopper is defined as a shopper for whom at least 70% of the
items purchased were on sale or purchased with a coupon. In the
following table, income units are in thousands of dollars, and each
interval goes up to but does not include the given high value. The
midpoints are given to the nearest thousand dollars. Income range
5-15 15-25 25-35 35-45 45-55 55 or more Midpoint x...

Do you tailgate the car in front of you? About 25% of all
drivers will tailgate before passing, thinking they can make the
car in front of them go faster. Suppose that you are driving a
considerable distance on a two-lane highway and are passed by 9
vehicles.
(a) Let r be the number of vehicles that tailgate
before passing. Make a histogram showing the probability
distribution of r for r = 0 through r =
9.
(b)Compute the expected...

A European growth mutual fund specializes in stocks from the
British Isles, continental Europe, and Scandinavia. The fund has
over 450 stocks. Let x be a random variable that represents the
monthly percentage return for this fund. Suppose x has mean μ =
1.3% and standard deviation σ = 1.5%. (a) Let's consider the
monthly return of the stocks in the fund to be a sample from the
population of monthly returns of all European stocks. Is it
reasonable to...

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...

In Hawaii, January is a favorite month for surfing since 60% of
the days have a surf of at least 6 feet.† You work day shifts in a
Honolulu hospital emergency room. At the beginning of each month
you select your days off, and you pick 5 days at random in January
to go surfing. Let r be the number of days the surf is at
least 6 feet.
(a) Make a histogram of the probability distribution of
r.
(b)...

Recall that Benford's Law claims that numbers chosen from very
large data files tend to have "1" as the first nonzero digit
disproportionately often. In fact, research has shown that if you
randomly draw a number from a very large data file, the probability
of getting a number with "1" as the leading digit is about 0.301.
Now suppose you are an auditor for a very large corporation. The
revenue report involves millions of numbers in a large computer
file....

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 13 minutes ago

asked 19 minutes ago

asked 22 minutes ago

asked 25 minutes ago

asked 37 minutes ago

asked 38 minutes ago

asked 45 minutes ago

asked 45 minutes ago

asked 47 minutes ago

asked 47 minutes ago

asked 47 minutes ago

asked 51 minutes ago