Question
A local grocery store wants to estimate the mean daily number of gallons of milk sold...
A local grocery store wants to estimate the mean daily number of
gallons of milk sold to customers. Assume the number of gallons
sold follows the normal distribution, with a population standard
deviation of 1.9 gallons. A random sample of 70 days shows that the
mean daily number of gallons sold is 15.50.
A. Compute a 90% confidence interval for the population mean.
B. This local grocery store is looking to find evidence to
contradict the claim that the average number of gallons of milk
sold so does not exceed 10. Conduct a hypothesis test for the
grocery store clerk (alpha=0.03).
Homework Answers
Answer #1
Given:
= 1.9
n = 70
= 15.50
Significance level, 
Therefore
there is sufficient evidence to conclude that the average number of
gallons of milk sold so does not exceed 10.
Not the answer you're looking for?
Similar Questions
The number of gallons of milk sold in a day in a grocery store is approximately...
The number of gallons of milk sold in a day in a grocery store
is approximately normally distributed with a mean of 600 gallons
and a standard deviation of 50 gallons. By the Empirical Rule:
a. for approximately 68% of the days, between 500 and 700
gallons of milk are sold
b. for approximately 75% of the days, between 500 and 700
gallons of milk are sold
c. for approximately 95% of the days, between 500 and 700
gallons of...
The daily demand for fresh milk ranges from 0 to 5 gallons. The grocery store offers...
The daily demand for fresh milk ranges from 0 to 5 gallons. The
grocery store offers the milk in a special 1 gallon bottle that
will be discarded after a day. Each gallon costs AED 2 to make and
is sold for AED 5. The daily demand for milk varies according to
the following distribution:
x
p(x)
0
0.05
1
0.20
2
0.40
3
0.20
4
0.10
5
0.05
How many gallons of juice should the store make each day?...
The owner of a local supermarket wants to estimate the difference between the average number of...
The owner of a local supermarket wants to estimate the
difference between the average number of gallons of milk sold per
day on weekdays and weekends. The owner samples 6 weekdays and
finds an average of 234.51 gallons of milk sold on those days with
a standard deviation of 33.997. 12 (total) Saturdays and Sundays
are sampled and the average number of gallons sold is 343.53 with a
standard deviation of 48.353. Construct a 95% confidence interval
to estimate the...
A local grocery store manager was tracking the amount of water customers purchased during the current...
A local grocery store manager was tracking the amount of water
customers purchased during the current pandemic. The store manager
had read an article that stated the mean amount of water purchased
by Americans was 5.7 gallons, but the store manager claims that
customers at the store purchase more than 5.7 gallons of water. To
test this claim, the store manager identified a sample of 25
customers and found that the mean amount of water purchased by the
sample was...
Wait-Times: USE SOFTWARE There are three registers at the local grocery store. I suspect the mean...
Wait-Times: USE SOFTWARE There
are three registers at the local grocery store. I suspect the mean
wait-times for the registers are different. The sample data is
depicted below. The second table displays results from an ANOVA
test on this data with software.
Wait-Times in Minutes
x
Register 1
2.0
2.0
1.1
2.0
1.0
2.0
1.0
1.3
1.55
Register 2
1.8
2.0
2.2
1.9
1.8
2.1
2.2
1.7
1.96
Register 3
2.1
2.1
1.8
1.5
1.4
1.4
2.0
1.7
1.75
...
Wait-Times: There are three registers at the local grocery store. I suspect the mean wait-times for...
Wait-Times: There are three registers at the
local grocery store. I suspect the mean wait-times for the
registers are different. The sample data is depicted below. The
second table displays results from an ANOVA test on this data with
software.
Wait-Times in Minutes
x
Register 1
2.0
2.0
1.1
2.0
1.0
2.0
1.0
1.3
1.55
Register 2
1.8
2.0
2.2
1.9
1.8
2.1
2.2
1.7
1.96
Register 3
2.1
2.1
1.8
1.5
1.4
1.4
2.0
1.7
1.75
ANOVA Results...
Wait-Times (Raw Data, USE SOFTWARE): There are three registers at the local grocery store. I suspect...
Wait-Times (Raw Data, USE SOFTWARE):
There are three registers at the local grocery store. I suspect the
mean wait-times for the registers are different. The sample data is
depicted below. It gives the wait-times in minutes.
Register 1
Register 2
Register 3
2.0
1.8
2.1
2.0
2.0
2.1
1.1
2.2
1.8
2.0
1.9
1.5
1.0
1.8
1.4
2.0
2.1
1.4
1.0
2.2
2.0
1.5
2.1
2.2
The Test: Complete the steps in testing the
claim that there is a difference...
Wait-Times (Raw Data, Software Required): There are three registers at the local grocery store. I suspect...
Wait-Times (Raw Data, Software Required):
There are three registers at the local grocery store. I suspect the
mean wait-times for the registers are different. The sample data is
depicted below. It gives the wait-times in minutes.
Register 1
Register 2
Register 3
2.0
1.8
2.1
2.0
2.0
2.1
1.1
2.2
1.8
2.0
2.6
1.5
1.0
1.8
1.4
2.0
2.1
1.4
1.0
2.2
2.0
1.4
1.9
1.8
The Test: Complete the steps in testing the
claim that there is a difference...
Wait-Times (Raw Data, Software Required): There are three registers at the local grocery store. I suspect...
Wait-Times (Raw Data, Software Required):
There are three registers at the local grocery store. I suspect the
mean wait-times for the registers are different. The sample data is
depicted below. It gives the wait-times in minutes.
Register 1
Register 2
Register 3
2.0
1.8
2.1
2.0
2.0
2.1
1.1
2.2
1.8
2.0
1.9
1.5
1.0
1.8
1.4
2.0
2.1
1.4
1.0
2.2
2.0
1.3
2.0
1.7
The Test: Complete the steps in testing the
claim that there is a difference...
Wait-Times (Raw Data, Software Required): There are three registers at the local grocery store. I suspect...
Wait-Times (Raw Data, Software Required):
There are three registers at the local grocery store. I suspect the
mean wait-times for the registers are different. The sample data is
depicted below. It gives the wait-times in minutes.
Register 1
Register 2
Register 3
2.0
1.8
2.1
2.0
2.0
2.1
1.1
2.2
1.8
2.0
2.6
1.5
1.0
1.8
1.4
2.0
2.1
1.4
1.0
2.2
2.0
1.8
2.1
2.0
The Test: Complete the steps in testing the
claim that there is a difference...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 9 minutes ago
asked 17 minutes ago
asked 28 minutes ago
asked 42 minutes ago
asked 42 minutes ago
asked 42 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago