Question

You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 24 customers and find that the average dollar amount spent per transaction per customer is $80.117 with a standard deviation of $13.8918. When creating a 95% confidence interval for the true average dollar amount spend per customer, what is the margin of error?

The owner of a local phone store wanted to determine how much customers are willing to spend on the purchase of a new phone. In a random sample of 15 phones purchased that day, the sample mean was $472.053 and the standard deviation was $26.0593. Calculate a 95% confidence interval to estimate the average price customers are willing to pay per phone.

Answer #1

You own a small storefront retail business and are interested in
determining the average amount of money a typical customer spends
per visit to your store. You take a random sample over the course
of a month for 14 customers and find that the average dollar amount
spent per transaction per customer is $82.232 with a standard
deviation of $10.2207. Create a 99% confidence interval for the
true average spent for all customers per transaction
1)
( 74.004 , 90.46...

Question 3 (1 point)
You own a small storefront retail business and are interested in
determining the average amount of money a typical customer spends
per visit to your store. You take a random sample over the course
of a month for 42 customers and find that the average dollar amount
spent per transaction per customer is $89.687 with a standard
deviation of $10.9431. When creating a 99% confidence interval for
the true average dollar amount spend per customer, what...

You own a small storefront retail business and are interested in
determining the average amount of money a typical customer spends
per visit to your store. You take a random sample over the course
of a month for 45 customers and find that the average dollar amount
spent per transaction per customer is $90.422 with a standard
deviation of $13.895. When creating a 90% confidence interval for
the true average dollar amount spend per customer, what is the
margin of...

You own a small storefront retail business and are interested in
determining the average amount of money a typical customer spends
per visit to your store. You take a random sample over the course
of a month for 15 customers and find that the average dollar amount
spent per transaction per customer is $119.375 with a standard
deviation of $12.1991. Create a 95% confidence interval for the
true average spent for all customers per transaction.
Question 1 options:
1)
(...

PART A) You own a small storefront retail business and are
interested in determining the average amount of money a typical
customer spends per visit to your store. You take a random sample
over the course of a month for 14 customers and find that the
average dollar amount spent per transaction per customer is
$109.477 with a standard deviation of $11.8571. Create a 90%
confidence interval for the true average spent for all customers
per transaction.
PART B) Researchers...

Question 1 (1 point)
You own a small storefront retail business and are interested in
determining the average amount of money a typical customer spends
per visit to your store. You take a random sample over the course
of a month for 8 customers and find that the average dollar amount
spent per transaction per customer is $106.745 with a standard
deviation of $13.7164. Create a 95% confidence interval for the
true average spent for all customers per transaction.
Question...

Jordan is the manager of a used book store. He wants to estimate
the average amount a customer spends per visit. A random sample of
80 customer receipts showed a mean of $6.87 with a standard
deviation of $2.49. Find a 95% confidence interval for the
average amount spent by all of his customers. Include the
interpretation of the interval.
A) Confidence Interval: ( nothing , nothing ) (round each
interval limit to two decimal places)
B) In the...

The retail advertising and marketing association would like to
estimate the average amount of money that a person spends for
Mother’s Day with a 95% confidence interval in a margin of error
within plus or -6 dollars. Assuming a standard deviation for
spending on Mother’s Day is $36. The required sample is

The owner of a local phone store wanted to determine how much
customers are willing to spend on the purchase of a new phone. In a
random sample of 10 phones purchased that day, the sample mean was
$473.426 and the standard deviation was $29.1709. Calculate a 95%
confidence interval to estimate the average price customers are
willing to pay per phone.
Question 1 options:
1)
( 452.558 , 494.294 )
2)
( -452.558 , 494.294 )
3)
( 464.201...

***Please include bell shaped curve.
Zingo's Grocery store claims that customers spend an average of
5 minutes waiting for service at the stores deli counter. A random
sample of 40 customers was timed at the deli counter, and the
average service time was found to be 5.85 minutes. Historically the
standard deviation for waiting time is 1.75 minutes per
customer.
a. Find the 95% confidence interval for the mean time that
customers wait at the deli counter.
b. Is there...

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