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
Jet001 [13]
3 years ago
5

In a children’s book, the mean word length is 3.6 letters with a standard deviation of 2.1 letters. In a novel aimed at teenager

s, the mean word length is 4.4 letters with a standard deviation of 2.4 letters. Both distributions of word length are unimodal and skewed to the right. Independent random samples of 40 words are selected from each book. Let xC represent the sample mean word length in the children’s book and let xT represent the sample mean word length in the teen novel.
Find the mean of the sampling distribution of xC-xT
Calculate and interpret the standard deviation of the sampling distribution. Verify that the 10% condition is met.
Justify that the shape of the sampling distribution is approximately Normal.
What is the probability that the sample mean word length is greater in the sample from the children’s book than in the sample from the teen novel?
Mathematics
1 answer:
Snowcat [4.5K]3 years ago
3 0

Answer:

Find the mean of the sampling distribution of xC-xT

Calculate and interpret the standard deviation of the sampling distribution. Verify that the 10% condition is met.

Justify that the shape of the sampling distribution

Step-by-step explanation:

2.4 letters. Both distributions of word length are unimodal and skewed to the right. Independent random samples of 40 words

You might be interested in
Find the x- and y-intercepts of the function f(x) = log(2x + 1) − 1.
sleet_krkn [62]
<span>Alright, here's your answer.

y-intercept is computed (not found) by assigning x = 0 and computing y: here that is f(0) = Log(2*0 + 1) – 1 = Log(1) – 1 = 0 – 1 = -1 
y-intercept is (0, -1) 

x-intercept is computed by solving f(x) = 0 for x: here that is 
0 = Log(2x + 1) – 1 → 1 = Log(2x + 1) 

Assuming the Log cited is base 10, then 10^1 = 10^Log(2x + 1) = 2x + 1 

That’s 10 = 2x + 1 

Therefore 9 = 2x 
x = 9/2 = 4.5 
Check this result in the original equation, I did! 

Your answer is - x-intercept is (4.5, 0)

I hope I helped! :)

</span>
6 0
3 years ago
The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. One day, she counts 15 s
poizon [28]
Im going to guess its either b or c.
7 0
3 years ago
Read 2 more answers
14 through 19 whole problem solving and answers
Sergio039 [100]

SEE THE PICTURE!~,BELOW~

4 0
3 years ago
Read 2 more answers
1. Given a regular octagon, find the measures of the angles formed by (a) two consecutive radii and (b) a
Fed [463]
A ) The angle formed by 2 consecutive radii:
Ф= 360° : 8 = 45°
b ) The angle formed by a radius and a side of a polygon:
α = (180° - 45°): 2 = 135° : 2 = 67.5°
Answer:
B ) 45°, 67.5°
4 0
3 years ago
Find the equivalent fraction of 2/3 having denominator 6 and 6 and numerator 10.​
4vir4ik [10]

Step-by-step explanation:

having denominator 6,

X/6= 2/3

X= 4

so, 4/6= 2/3

having numerator 10,

10/X= 2/3

X= 15

so, 10/15= 2/3

7 0
3 years ago
Other questions:
  • Gina paints beach scenes on notecards. She sells packages of 8 notecards for $8 for one package, $16 for 2 packages, and $24 for
    10·1 answer
  • A swimming pool is circular with a 30-ft diameter. the depth is constant along east-west lines and increases linearly from 1 ft
    7·1 answer
  • What is the area of a triangle that has a height of 12 feet and a base length of 6 feet? 24 feet2 36 feet2 48 feet2 72 feet2
    11·2 answers
  • HELP! What is the measure of angle ABE? WILL GIVE BRAINLIEST!
    11·1 answer
  • Meg pounded a stake into the ground. When she
    5·1 answer
  • List all the factors of 12​
    6·2 answers
  • PLEASE I NEED HELP URGENT I Will MARKE YOU BRAIN LIST​
    6·1 answer
  • Calculate the value of (1/2)^4
    9·1 answer
  • I Need Help Please I dont understand?
    7·1 answer
  • Least to greatest<br> .<br> .<br> .<br> Please and thank you &lt;3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!