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
icang [17]
3 years ago
8

Calculate the upper and lower limit for a 95% confidence interval about this mean. a family needs a new car, but isn't sure they

can fit the payment into their budget. a sample of 36 months of grocery bills yields a mean of $94 with a standard deviation of $10. if the upper limit of a 95% confidence level is below $100, the family can afford to buy the car. standard error = (standard deviation)/(square root of sample size) upper limit (dollars and cents) lower limit (dollars and cents)
Mathematics
1 answer:
Ket [755]3 years ago
8 0
<span>Answer: Where:
θ = confidence value
n = number of observations
μ = mean
Θ = standard deviation
... then your interval will be:
μ - θΘ/√n ≤ X ≤ μ - θΘ/√n
For some reason they want you to calculate the standard error, which is the Θ/√n section, and I mentioned the 1.96 value, so the above equation simplifies to: μ - 1.96SE ≤ X ≤ μ - 1.96SE</span>
You might be interested in
158÷37 show work need help
denis-greek [22]
Here’s a pic of my work, it shows that the numbers 2,7,0 repeat.

Hope this helps!! :)
8 0
2 years ago
The perimeter of a rectangle is 640 ft. the length is 15 ft more than the width. find the are of the rectangle.
aev [14]
The answer to this question is area=length*width
7 0
3 years ago
Simplify the expression
8_murik_8 [283]
(√3 + 1)/8 the answer to the question
7 0
3 years ago
Read 2 more answers
The tables given are for the linear functions f(x) and g(x) what is the input value for which f(x)= g(x) is true? X=
solniwko [45]
It's asking us to find the input value x such that f(x) = g(x). So let's look at the columns f(x) and g(x). We can see that both f(x) and g(x) have the value of 3. The x-value at which f(x) = g(x) = 3 is x = –1.  

Thus the answer is x = –1.
4 0
2 years ago
Read 2 more answers
What is the value of log 6 36?
Zanzabum

Answer:

2

Step-by-step explanation:

Logarithm base 6 of 36 is 2 .

8 0
3 years ago
Other questions:
  • Which system of linear inequalities is represented by the graph?
    13·2 answers
  • a gasoline service station offers 20 cents off the regular price per gallon every Tuesday.What equation relates the discounted p
    10·2 answers
  • Which number line shows the solution to x&lt;-3
    13·2 answers
  • Help me please, but dont answer if you dont know it
    11·2 answers
  • What 2 numbers multiply to make -48 and combine to make 2?<br> ____ and ___
    5·2 answers
  • What is the surface area of the cube below?
    10·1 answer
  • Factor completely 3x - 12. (1 point)
    13·1 answer
  • PLEASE HELP TIMED---
    6·2 answers
  • Find BC.<br> Round to the nearest tenth.<br> А<br> 84°<br> 16<br> B<br> 51°
    7·1 answer
  • The area of a circle is 25π in². What is the circumference, in inches? Express your answer in terms of \piπ.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!