Question

The average weekly amount spent on fast food is normally distributed with a mean of $44 and a standard deviation of $14.50. Answer the following questions based on the information:

1. What is the area under the density curve, once it is sketched? nothing

2. What is the value of the median? nothing

3. What is the value of the mode? nothing

Answer #1

Weekly fast food expenditures by young adults are normally
distributed with a mean of $42.85 and a standard deviation of
$12.35.
A) What is the probability that a randomly selected young adult
will spend more than $47 weekly on fast food? Round to four places
after the decimal point.
B) Young adults in the bottom 4% of weekly expenditures on fast
food are designated as FFF. What money amount represents the
maximum weekly expenditures for FFF young adults? Round to...

A marketing researcher analyzing the fast-food industry
noticed the following: The average amount spent at a fast- food
restaurant in California was $3.30, with a standard deviation of
$0.40. Yet in Georgia, the average amount spent at a fast-food
restaurant was $3.25, with a standard deviation of $0.10. What do
these statistics tell you about fast-food consumption patterns in
these two states?

A study found that the mean amount of time cars spent
indrive-throughs of a certain fast-food restaurant was 147.7
seconds Assuming drive-through times are normally distributed with
a standard deviation of 31 seconds :
The probability that a car spends more than 3 minutes in the
restaurant's drive-through is ___ ( fill in the answer plz)

The hourly wage for workers in a fast food restaurant is
Normally distributed with a mean of $5.85 and a standard deviation
of $0.35. If a worker is selected at random, find the probability
that:
a. (S)he earns less than $5.50 an hour
b. (S)he earns between $5.90 and $6.40 an
hour
c. (S)he earns at least $6.00 an hour

The mean amount spent by a family of four on food per month is
$700 with a standard deviation of $85. Assuming that the food
expenditures are normally distributed, what is the proportion of
families of four that spend more than $900 per month?

3. The mean amount spent by a family of four on food is $500 per
month with a standard deviation of $75. Assume that the food costs
are normally distributed. • What is the probability that a family
spends less than $410 per month? • What is the percentage of
families that spend $400 to $600 per month?

Suppose that returns for Firm X are normally distributed with a
mean of 12% and a standard deviation of 10%. Assuming that this
distribution is maintained into the future, respond to the
following questions. A. What is the probability of occurrence of a
return less than 2 %? Make a sketch showing your answer as an area
under the normal curve. B. What is the probability of occurrence of
a return greater than 32%? Make a sketch showing your answer...

The amount of money spent weekly on cleaning, maintenance, and
repairs at a large restaurant was observed over a long period of
time to be approximately normally distributed, with mean μ = $629
and standard deviation σ = $44.
(a) If $646 is budgeted for next week, what is the probability
that the actual costs will exceed the budgeted amount? (Round your
answer to four decimal places.)
(b) How much should be budgeted for weekly repairs, cleaning,
and maintenance...

The average amount spent by a family of two on food per month is
$500 with a standard deviation of $75. Assuming that the food costs
are normally distributed,
what is the probability that a family spends less than $410 per
month?
what is the probability that a family spends great than $610 per
month?
what is the probability that a family spends $500±50(between
$450 and $550) per month?

Assume that z-scores are normally distributed with a
mean of 0 and a standard deviation of 1.
If P(−b<z<b)=0.3278P(-b<z<b)=0.3278, find
b.
b= (Round to three decimal places.)
Hint: Consider symmetry on this problem and draw a picture of
the normal distribution to visualize this problem.
What is the area under the normal curve from 0 to b?
What is the area under the normal curve from −∞-∞ to 0?
Given that information, what is the area under the normal curve
from...

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