answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergio039 [100]
2 years ago
14

Suppose a researcher is interested in understanding the variation in the price of store brand milk. a random sample of 36 grocer

y stores is selected from a population and the mean price of store brand milk is calculated. the sample mean is $3.13 with a standard deviation of $0.23. construct a 99% confidence interval to estimate the population mean.
Mathematics
1 answer:
liq [111]2 years ago
7 0
The confidence interval extremities are given by the formula:
m +/- (z · σ / √n)

In your problem:
m = 3.13
<span> σ = 0.23
n = 36
The z-score for a 99% confidence interval is 2.576

Therefore:
</span>m - (z · σ / √n) = 3.13 - (2.576 · 0.23 / √36) = 3.031
<span>m + (z · σ / √n) = 3.13 + (2.576 · 0.23 / √36) = 3.229

Therefore, the confidence interval is (</span>3.031, <span>3.229).</span>

You might be interested in
The area of the shaded triangles in the fractal shown form a geometric sequence. The area of the largest triangle (not shaded) i
Katen [24]

Answer:

Blue: 1/16 square units

Green: 1/64

yes

1/3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A sumo wrestling ring is circular and has a circumference of 4.6\pi \text{ meters}4.6π meters4, point, 6, pi, start text, space,
frez [133]

Answer:

The area of the sumo wrestling ring is 5.29 \pi

Step-by-step explanation:

The circumference of the circular sumo wrestling ring is 4.6\pi, that means its radius r is:

2\pi r=4.6\pi

r=\frac{4.6}{2} =\boxed{2.3\:meters.}

Now once we have the radius r of the sumo wrestling ring we can find its area A by the following formula:

A=\pi r^2

Putting in the value of r=2.3\:meters we get:

A=\pi (2.3m)^2=\boxed{5.29\pi\:\:m^2}

Therefore the area of the sumo wrestling ring is {5.29\pi\:\:m^2

3 0
2 years ago
Read 2 more answers
Today, Sean left home at 8\text{ a.m.}8 a.m.8, start text, space, a, point, m, point, end text, drove to work, and worked from 9
EastWind [94]

Answer:

why yes

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Suppose that a new company has five employees: Zamora, Agraharam, Smith, Chou, and Macintyre. Each employee will assume one of s
Sliva [168]

Answer:

Step-by-step explanation:

Before constructing bipartite graph, we need to have the responsibilities of each person sorted out first. I listed it in dash form for easy reading

Zamora

- planning,

- sales, marketing

- industry relations

Agraharam:

- planning

- development

Smith

- publicity,

- sales,

- industry relations

Chou

- planning,

- sales,

- industry relations

Macintyre

- planning,

- publicity,

- sales,

- industry relations

After we are done with that, we can start constructing the bipartite graph by making two column or two rows of group, one is for the person and the other is for responsibilities.

Later, we start match up each person to the responsibilities that assigned to them.

I attached the bipartite graph for this question as well.

3 0
2 years ago
Read 2 more answers
ASAP PLEASE HELP!!
jenyasd209 [6]

Answer:

save up and pay cash

Step-by-step explanation:

paying cash is always the best idea and not trying to get so much debit. If you did one other otion and have the debit some emergency can come up and you will not be able to pay for that, and aying cash you save more money

5 0
2 years ago
Read 2 more answers
Other questions:
  • At a red-tag sale, all items with red tags have been marked down by 49%. What should be the sale price of a DVD player having a
    6·1 answer
  • Which equations show you how to find 16-9?
    15·1 answer
  • Which of the following is not a promotional tactic used by a seller?
    6·2 answers
  • An animal shelter is feeding 24 dogs. Each dog is fed 8 ounces of dog food twice a day. How many pounds of dog food does the she
    8·1 answer
  • In a class of 32 students, the mean height of the 14 boys is 1.56 metres. The mean height of all 32 students is 1.515 metres.
    7·2 answers
  • Twenty five individuals are randomly selected out of 100 shoppers leaving a local bedding store. Each shopper was asked if they
    8·1 answer
  • alice has eight good behavior stars and earns a new one each week. Mack has two good behavior stars and earns two new ones each
    9·2 answers
  • Ron drove his car every day from Monday to Saturday.On Monday and Tuesday,the car used an average of 2 gallons of gas each day.
    12·2 answers
  • Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. 27% of the possible Z values are grea
    5·1 answer
  • What is the difference between 903.55 and 87.7<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!