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
kramer
3 years ago
14

14. Use the given degree of confidence and Sample data to construct a confidence interval for the population mean. Assume that t

he population has a normal distribution.
n=10, x=8.7, s=3.3, 95% confidence
I know the answer is 6.34<μ<11.06 but I dont know how to get there
Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0

Step-by-step explanation:

Confidence interval = mean ± margin of error

CI = μ ± ME

The mean is μ = 8.7.

Margin of error = critical value × standard error

ME = CV × SE

At 95% confidence and 9 degrees of freedom, CV = 2.262.

SE = s / √n

SE = 3.3 / √10

SE = 1.04

The margin of error is:

ME = 2.262 × 1.04

ME = 2.36

CI = 8.7 ± 2.36

CI = (6.34, 11.06)

You might be interested in
How much greater is the area of a a square with a side length of 8 inches than the area of a circle with radius of 4 inches?
expeople1 [14]
Area of a square= l²
                           = 8×8 = 64 in²

Area of  a circle= πr²
                         = π × 4²
                         = 50.3 in²
Difference = 64 - 50.3 = 13.7 in²
7 0
3 years ago
Select the expression that is equivalent to (picture)
seraphim [82]
The answer to this question is x^(rt + s) since (x^r)^t becomes x^(rt) by the exponent power of a power property. Then multiplying powers of the same base results in the exponents being summed.
6 0
3 years ago
A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing
Marizza181 [45]
Set up a proportion.

pounds / milligrams of medicine

195/279 = 130/x

195x = 279 times 130
195x =36,270
x = 36,270/195
x = 186

A patient weighing 130 pounds needs 186 milligrams of medicine.
6 0
3 years ago
Brian has a pies that is 10 inches is diameter. he has 9 people over and would like everyone to have a equal slice . how long is
krek1111 [17]

3.14 inches so they each get a \pi of pie
4 0
3 years ago
Will reward brainliest What is the value of x?
love history [14]

Answer:

x=5

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • How many different arrangements can be made with the letter of the word 'M O R O C C O'
    14·1 answer
  • (x) = 1/(x + 4)² + 2?
    14·2 answers
  • This number is 0.02 more than five and five tenths
    8·1 answer
  • Probability is used when describing a function of a parameter given an outcome. For example, if a coin is flipped 10 times and i
    5·1 answer
  • Which of the following is the function represented by the graph?
    10·2 answers
  • The pet store sold two cages. The first cage was 4 feet long and 6 feet wide. The second cage was the same length as the first c
    8·2 answers
  • Can someone help me, please???
    7·1 answer
  • The total resistance in a circuit with two parallel resistors is 2 ohms and R1 is 6 ohms. Using the equation for R2, in terms of
    13·1 answer
  • Half of the substance to remain is called the half-life of the substance.
    9·1 answer
  • Use the description and table to graph the function, and determine the domain and range of f(x). Represent the domain and range
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!