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
iren2701 [21]
3 years ago
14

Based upon extensive data from a national high school educational testing program, the standard deviation of national test score

s for critical reading was found to be 115 points. If a sample of 500 students are given the test, what would be the standard error of the mean? (rounded to the nearest 100th)
Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
6 0

Answer:

The standard error of the mean is 10.11 points

Step-by-step explanation:

Standard error of mean = t×sd/√n

sd = 115 points, n = 500, degree of freedom = n-1 = 500-1 = 499, assuming a 95% confidence level, t-value corresponding to 499 degrees of freedom and 95% confidence level is 1.96501

Standard error of mean = 1.96501×115/√500 = 10.11 points (to the nearest 100th)

You might be interested in
What the answer S4• s8 •s3
Hatshy [7]

Answer:

s^15

Step-by-step explanation:

When multiplying exponents with the same base, add the exponents

8 0
3 years ago
Jeffrey is a kickboxing instructor who will be teaching classes at a local gym. To get certified
tatyana61 [14]

If Jeffrey takes 50 classes in his first month as an instructor, he will earn back the amount he spent on certification.

Step-by-step explanation:

Amount spent on certification = $200

Base salary = $50

Payment per class = $3

Let, x be the number of classes.

J(x) = 50+3x  

He needs to earn $200 dollars in first month, therefore,

50+3x=200

3x=200-50\\3x=150

Dividing both sides by 3

\frac{3x}{3}=\frac{150}{3}\\x=50

If Jeffrey takes 50 classes in his first month as an instructor, he will earn back the amount he spent on certification.

Keywords: function, linear equation

Learn more about functions at:

  • brainly.com/question/6465937
  • brainly.com/question/6431715

#LearnwithBrainly

7 0
3 years ago
9y+y combining like terms
nignag [31]
10y..................................................................
4 0
4 years ago
The mean of first five natural numbers is
Vinil7 [7]

Answer:

Step-by-step explanation:

Mean of first five natural numbers =  sum of first 5 natural numbers ÷ 5

                                         = (1 + 2 + 3 + 4 + 5)÷ 5

                                        = 15 ÷ 5

                                       = 3

7 0
3 years ago
The mean number of books read
taurus [48]

Answer:

I thing Kaleigh read 1.5 more than Austin

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Question 4(Multiple Choice Worth 1 points) (03.05 MC) What does > −2 indicate about the position of and −2 on the number line
    10·1 answer
  • 2−2s= ​4 ​ ​3 ​​ s+13
    10·1 answer
  • What is 6 divided by 2.99
    7·2 answers
  • 1+4=5 2+5=12 3+6=21 8+11=
    14·2 answers
  • Donna bought 16
    11·2 answers
  • *PLEASE ANSWER TY* What is the volume of this prism?
    9·1 answer
  • At a wildlife park, zoey counted 10 lions and 14 tigers. What is the ratio of lions to tigers?
    8·2 answers
  • Name a pair of adjacent supplementary angles.
    10·1 answer
  • PLEASE HELP I HAVE A 68 IN MATH
    11·2 answers
  • -8-8-6-2 4 12 22<br> What is the nth term rule of the quadratic sequence
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!