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
sveta [45]
2 years ago
9

PLEASE HELP ME OUT THIS IS MY LAST QUESTION PLSSSS!!

Mathematics
2 answers:
mafiozo [28]2 years ago
6 0

Answer:

d?

Step-by-step explanation:

Elodia [21]2 years ago
3 0

Answer:

Step-by-step explanation:

A, C, D

The proportions are 1:8, and A, C and D all show this ratio

You might be interested in
Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls on the skin, is essential for stro
tigry1 [53]

Answer:

a) The 98% confidence interval would be given (0.182;0.218).

b) We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

c) If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

d) Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

Step-by-step explanation:

Data given and notation  

n=2700 represent the random sample taken    

X represent the people in England who are deficient in Vitamin D

\hat p=0.2 estimated proportion of England people who are deficient in Vitamin D

\alpha=0.02 represent the significance level

Confidence =0.98 or 98%

z would represent the statistic (variable of interest)    

p= population proportion of England people who are deficient in Vitamin D

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 98% confidence interval the value of \alpha=1-0.98=0.02 and \alpha/2=0.01, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=2.33

And replacing into the confidence interval formula we got:

0.20 - 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.182

0.20 + 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.218

And the 98% confidence interval would be given (0.182;0.218).

Part b

We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

Part c

If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

Part d

Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

3 0
3 years ago
I do not know how to do this.
Nonamiya [84]

Answer:

Step-by-step explanation:

(a) Option B cost less at 120 miles driven

The cost difference at 120 miles between option A and option B is $15

(b) Option A and B cost the same at driving 60 miles.

Option B would cost more if you drive less than 60 miles.

6 0
2 years ago
Can someone explain how to do this and the answer?
inysia [295]

Step-by-step explanation:

Helo

your answer refer to the attachment

7 0
3 years ago
In the accompanying diagram, lines a and b are parallel, and lines c and d are transversals. 5 a 6 3 4 7/8 be Which angle is con
OLga [1]

Answer:

Step-by-step explanation:

7 0
2 years ago
There are 4 mystery bags and 32 ounces of weights on one side and 60 ounces of weights on the other side. How much gold is in ea
lorasvet [3.4K]

Answer:

do

Step-by-step explanation:

good love you

4 0
3 years ago
Other questions:
  • 2) Write an integer to best describe<br> the following situation: 6 feet below<br> sea level
    9·1 answer
  • (5,-2 is on which quardrant
    7·1 answer
  • 4x10^7 is ? Times as much as 4x10^3
    9·2 answers
  • A train makes a trip at 65 mi/h. A plane traveling 130 mi/h makes the same trip in 3 fewer hours. Write and solve an equation to
    7·2 answers
  • What is 4 less than 5 by the 3 power equal
    7·2 answers
  • -9 x 2 1/2 What is the value of the expression
    9·1 answer
  • How do I do this answer please
    10·2 answers
  • What is the product? [4 2] x
    13·1 answer
  • There are 7 pieces of pie left over in the cafeteria l. If 5 pieces are apples and 2 are cherry, what fraction of the remaining
    12·1 answer
  • The endpoints of AB are A (-7, -2) and B (9,7). Find the coordinates of the midpoint M.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!