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
stepan [7]
3 years ago
7

I need help please t= hours

Mathematics
1 answer:
JulsSmile [24]3 years ago
7 0
All I can see is the equation. What is it asking?
You might be interested in
To bake one cake, Drew uses 18 ounces of flour. He has 850 ounces of flour. Let y represent the ounces of flour left and x repre
egoroff_w [7]
Y= 850-18x
since you start with 850 ounces that will be your y intercept
each time you go down 18 ounces so the slope is -18
5 0
3 years ago
Read 2 more answers
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
256 equals j subtracted from 199
Nikitich [7]

Answer:

-57

Step-by-step explanation:

256=199-j

256-199=57

5 0
3 years ago
Read 2 more answers
I need help with this problem
Artist 52 [7]

Answer:

2nd answer

Step-by-step explanation:

6 0
3 years ago
There are 12 red pens, 20 blue pens and 5 black pens in a bag. What is the probability that you will pick a black pen? Round
Vlada [557]

Answer:

The probability of getting a black pen from the bag is 13.5%.

Step-by-step explanation:

To determine the percentage probability that a black pen will be obtained from the bag, the following calculation must be performed:

12 + 20 + 5 = 37

37 = 100%

5 = X

(5 x 100) / 37 = X

500/37 = X

13.5 = X

Thus, it is determined that the totality of pens is 100%, and through a cross multiplication the percentage of the 5 black pens with respect to the total of pens is obtained.

Therefore, the probability of getting a black pen from the bag is 13.5%.

5 0
3 years ago
Other questions:
  • One of the two hypotheses is to be chosen based on an observation of the random variable X. If H0 is true, then X is exponential
    9·1 answer
  • The volume of Jupiter is approximately 10^14 cubic km. The volume of Earth is approximately 10^11 cubic km. How many planets the
    10·1 answer
  • Como dividir 2 entre 72​
    13·1 answer
  • Two tangents drawn to a circle from a point outside it, are equal in length.prove it.<br>​
    5·1 answer
  • !!!!!!!!!!!!!!!!!!!! Yes
    8·2 answers
  • Which measurement uses square units​
    12·2 answers
  • PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPPPPP!!!!
    5·1 answer
  • 1 point<br> Juan got 1603 as the sum of 80.1 and 802. Where did he make his<br> mistake? *
    14·1 answer
  • Please answer now! i will mark brainliest!
    10·1 answer
  • Help?????????????????​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!