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
Scrat [10]
3 years ago
9

An article reported that for a sample of 41 kitchens with gas cooking appliances monitored during a one-week period, the sample

mean co2 level (ppm) was 654.16, and the sample standard deviation was 165.74. (a) calculate and interpret a 95% (two-sided) confidence interval for true average co2 level in the population of all homes from which the sample was selected. (round your answers to two decimal places.)
Mathematics
2 answers:
eduard3 years ago
8 0
<span>- x ± zά/2x s/âšn Here zά/2= z0.05/2= 1.96 Substitute the values we have 654.16 ± 1.96 x 164.43/âš41 =(603.83, 704.49)</span>
tester [92]3 years ago
7 0

Given:

Mean of 654.16

Sample size is 41

Standard dev is 165.74

Alpha is 1 – 0.95, Z(0.025) = 1.96

So the computation would be:

Mean ± Z* s/sqrt (n)

= 654.16 ± 1.96*165.74/sqrt(41)

= 654.16 ± 1.96*25.88

= 654.16 ± 50.7248

= 603.4352, 704.8848 is the confidence interval

Interpretation: We are 95% confident that this confidence interval contains the true pop. mean

You might be interested in
What is the correct answer to a+ny=n, solving for n?
AysviL [449]
A+ny = n
a = n-ny
a = (1-y)n
a/(1-y) = n
n = a/(1-y)
6 0
3 years ago
Read 2 more answers
You spent $7 more than you had. Write an integer to represent this? Would it be -7?
dezoksy [38]
That would be correct
5 0
3 years ago
Read 2 more answers
Mr. Twain asked the students in his class to draw the figure below using a scale factor
arsen [322]

Answer:Mark

Step-by-step explanation:Diva

3 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP!!!!!!!!<br> (Also please don't reply if you don't know)
svet-max [94.6K]

Answer: a coefficet is a number that has letters by it but you only put the number so anyone that a letter and a number youll put that one in the list

Step-by-step explanation:

7 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 14PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
maksim [4K]

Answer:

a. d.

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • The radius of a sphere = 5ft. Calculate the ENTIRE volume of the sphere
    6·1 answer
  • Verify whether x=-1/3 is a zero of the polynomial p(x) =3x+1​
    12·1 answer
  • A 20-ounce bag of popcorn costs $2.80. If the unit price stays the same, how much does a 35-ounce bag of popcorn cost?
    12·1 answer
  • What is the value of x?
    10·1 answer
  • Question:<br>30% of $40 is $<br>​
    9·1 answer
  • 3. Growth of Cholera bacteria. Suppose that the cholera bacteria in a colony grows unchecked according to the Law of Exponential
    15·1 answer
  • Deanna measured the length of a piece of wood three times. The measurements were 25.67 cm, 25.79 cm, and 25.71 cm. List the meas
    15·1 answer
  • I don't know this can someone help me?
    6·2 answers
  • Please HELP ME!!!!! Asap
    14·1 answer
  • X² + y² if x = 7 and y = 5. What is the solution to this??
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!