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
ddd [48]
3 years ago
11

Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.9 years with a

standard deviation of 0.9 years. Step 1 of 2 : If a sampling distribution is created using samples of the ages at which 69 children begin reading, what would be the mean of the sampling distribution of sample means
Mathematics
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

5.9 years.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

In this question:

Mean of the population is \mu = 5.9

If a sampling distribution is created using samples of the ages at which 69 children begin reading, what would be the mean of the sampling distribution of sample means?

By the Central Limit Theorem, the same population mean, of 5.9 years.

You might be interested in
The population of a town increased from 3200 in 2008 to 4850 in 2009 find the absolute and relative (percent) increase
Elina [12.6K]
I think 16.5% because 48.5 - 32 gives you 16.5
8 0
2 years ago
Help answer this for me ‍♀️
dangina [55]
Find all the angles and then divide or mutiply





5 0
3 years ago
What is the slope of the line 4x - 2y = 5?
aniked [119]

Answer:m=4/2

Step-by-step explanation:

u subtract 4 to get y alone

then u dived by a -2y to get y alone

then u u get y=-4/2x-5

3 0
3 years ago
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Aloiza [94]
I’m pretty sure it’s c if not sorry
5 0
2 years ago
Please help me with this asap thank you
Fiesta28 [93]

Answer:

37.7

Step-by-step explanation:

C= 2×3.14×6

C= 37.7

Let me know if it's wrong!

3 0
3 years ago
Other questions:
  • The air pressure inside Jason’s bike tires decreases by about 6% each week. The original pressure was 45 pounds per square inch
    14·1 answer
  • Matthew is throwing a pizza party. He pounds of cheese available and he
    14·1 answer
  • 7. 3x +1 =5x simplified​
    8·2 answers
  • Billie’s monthly cell phone bill includes the cost of cell phone service, 15% tax on the cost of the cell phone service, and a $
    8·1 answer
  • The intersection of a plane and a ray can be a point true or false
    9·2 answers
  • Can 28/75 be simplified
    6·1 answer
  • Can you please help!! I need it ASAP! ;(
    9·1 answer
  • Find two consecutive odd integers such that 32 more than the lesser is three times the greater​
    6·1 answer
  • 116,02 LC)
    15·1 answer
  • Give an example of when an actual net income would result in a negative number.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!