1answer.
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]
3 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]3 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 a square is 84 square inches. What is the length, in inches, of one side of the square? Represent your answer using
Crazy boy [7]
The are of a square is determined by squaring the side. And the length will hence, be determined by square rooting the area. 
∴ length of this square is = √84 = 9.165
3 0
3 years ago
(2^4x+4)÷(2^x+1)<br> 60 POINTS<br> BRANLIEST IF RIGHT
zmey [24]

Answer:

\frac{2^4^x + 4}{2^x + 1}

The file includes the input of your equation, comment if the equation you input is a mistake.

6 0
2 years ago
Read 2 more answers
Subtract the following complex numbers:<br> (3 +31) - (13+15)
vova2212 [387]

Answer:

33-28=5

Step-by-step explanation:

hope this helps

6 0
2 years ago
Read 2 more answers
A pair of radar stations monitors the path of a helicopter. Station A is located at the origin of a coordinate plane. Station B
Ierofanga [76]

Answer:

A

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Estimate the Product of 58 and 16
Tanzania [10]

Answer:

928

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Raj builds a side table in the shape of a cube. Each edge of the cube measures 15 inches. Raj wants to
    5·1 answer
  • Hiro rubs an inflated balloon on his hair, and his hair sticks to the balloon. As he moves the balloon away from his head, how d
    14·2 answers
  • Evaluate using the values given.<br> ZX - [z - (4 + x)/6] when x = 2, z = 6
    14·1 answer
  • If 48 of the 60 seat on a bus were occupied what percent of the seats were not occupied?
    5·1 answer
  • The original amount owed on a loan is known as
    6·1 answer
  • What is the axis of symmetry for the following equation?<br> y=4x2-8x+9
    9·1 answer
  • Find the distance between the two points in simplest radical form.<br> (3, -8) and (-2,-1)
    14·1 answer
  • Can some pls help me
    7·1 answer
  • Here this is the new one.
    15·1 answer
  • Help w exponential functions pls
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!