Question

**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?**

Answer #1

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

The average hourly wage of workers at a fast food restaurant is
$8.50/hr. Assume the wages are normally distributed with a standard
deviation of $0.40. If a worker at this fast food restaurant is
selected at random, what is the probability that the worker earns
more than $9.25? Write your answer as a percentage and round to two
decimal places.

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)

A marketing specialist wants to estimate the average amount
spent by visitors to an online retailer's newly-designed website.
From the data in a preliminary study she guesses that the standard
deviation of the amount spent is about 12 dollars.
Question 1. How large a sample should she take
to estimate the mean amount spent to within 5 dollars with 95%
confidence? (Round your answer up to the next largest integer).

A marketing specialist wants to estimate the average amount
spent by visitors to an online retailer's newly-designed website.
From the data in a preliminary study she guesses that the standard
deviation of the amount spent is about 12 dollars.
Question 1. How large a sample should she take
to estimate the mean amount spent to within 2 dollars with 99%
confidence? (Round your answer up to the next largest integer).

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?

The average amount of money that people spend at Don Mcalds fast
food place is $7.8100 with a standard deviation of $1.5600. 14
customers are randomly selected. Please answer the following
questions, and round all answers to 4 decimal places where possible
and assume a normal distribution.
What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
What is the distribution of ∑x∑x? ∑x∑x ~ N(,)
What is the probability that one randomly selected customer
will spend less than $7.8847?
For...

A] this problem requires PhStat solution. A marketing researcher
wants to estimate the mean amount spent ($) on Amazon.com by Amazon
Prime member shoppers. Suppose a random sample of 100 Amazon Prime
member shoppers who recently made a purchase on Amazon.com yielded
a mean amount spent of $1,500 and a standard deviation of $200. 1.
Using a 0.05 level of significance, state your decision.
2. Using the critical value approach, is there evidence that the
population mean amount spent on...

A marketing researcher wants to estimate the mean amount spent
($) on a certain retail website by members of the website's
premium program. A random sample of
95 members of the website's premium program who recently made a
purchase on the website yielded a mean of $2000 and a standard
deviation of $150.
Complete parts (a) and (b) below.
A ___ < U < ____
b. Interpret the interval constructed in (a).
Choose the correct answer below.
A.The sample mean...

The average amount of money that people spend at Don Mcalds fast
food place is $7.7500 with a standard deviation of $1.7200. 48
customers are randomly selected. Please answer the following
questions, and round all answers to 4 decimal places where possible
and assume a normal distribution. What is the distribution of X ? X
~ N( , ) What is the distribution of ¯ x ? ¯ x ~ N( , ) What is the
distribution of ∑ x...

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