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
aev [14]
3 years ago
8

Suppose the U.S. president wants to estimate the proportion of the population that supports his current policy toward revisions

in the health care system. The president wants the estimate to be within 0.03 of the true proportion. Assume a 99% level of confidence. The president’s political advisors found a similar survey from two years ago that reported that 62% of people supported health care revisions. How large of a sample is required?
Mathematics
1 answer:
trasher [3.6K]3 years ago
7 0

Answer: 385

Step-by-step explanation:

sample size n = pq(z/E)^2 = 0.6*(1-0.6)*(1.96/0.05)^2 =(NNN) NNN-NNNN

Round up to 369

Answer: 369

b. how large a sample would be necessary if no estimate were available for the proportion supporting current policy?

sample size n = pq(z/E)^2 = 0.5*0.5*(1.96/0.05)^2 = 384.16

Round up to 385

Answer: 385

You might be interested in
I need you guys to show work too please one by one make sure to answer every single one also this is apart of them from my homew
kotykmax [81]

Answer:

5. $4.50

6. 40 photo albums

7. s ≥ 4.25

8. r ≤-2; filled circle on -2 going to the left

Step-by-step explanation:

5.

(4 + x ) / 2 =4.25

<em>(multiply by 2) </em>

4 + x = 8.5

<em>(subtract 4) </em>

x= 4.5

6.

60 = 5 + (n * 1 3/8)

<em>(subtract 5) </em>

55 = n * 1 3/8

<em>(divide by 1 3/8)  </em>

40 = n

7.

70 ≤ 36 + 8s

<em>(subtract 36) </em>

34 ≤ 8s

<em>(divide by 8) </em>

4.25 ≤ s

8.

9r + 3 ≤ -15

<em>(minus 3) </em>

9r ≤ -18

<em>(divide by 9) </em>

r ≤ -2

5 0
3 years ago
the vertex of this parabola is at (4,-3). When the x-value is 5, the y-value is -6. what is the coefficient of the squared expre
kondaur [170]

Answer:

Step-by-step explanation:

The work form of this upside down parabola is

y=-|a|(x-h)^2+k

It's VERY important that you remember that the negative value there in front of the absolute value of a just means that the parabola is upside down. a itself will not be negative (and we know that because of the absolute value symbols there!). Filling in the x, y, h, and k values we were given allows us to solve for the |a|:

-6=-|a|(5-4)^2-3 and

-6=-|a|(1)^2-3 and

-6=-|a|1-3 and

-6=-|a|(-2) and

3 = -|a|

Again, the negative simply tells us the parabola is upside down, so the absolute value of a = 3, choice c.

6 0
3 years ago
Subtract. 12 4/5 - 5 9/10
g100num [7]

Answer:

6\frac{9}{10}

Step-by-step explanation:

12\frac{4}{5} - 5 \frac{9}{10}

LCD: 10  

12\frac{8}{10} -5\frac{9}{10}

answer: 6\frac{9}{10}

4 0
3 years ago
HELP PLEASE RNNNNNN
GalinKa [24]

Answer:

The three statements on the right hand side of the screen are the correct ones

Step-by-step explanation:

To take the average of the weight of the cat in the month of April is the following:

9.8 + 9.6 + 9.7 + 9.5 + 9.4 = 48

But then divide that by the number of samples:

48/5=9.6

The mean for April is 9.6

To take the average of the weight of the cat in the month of November is the following:

9.4 + 9.3 + 9.1 + 9.2 + 9 = 46

But then divide that by the number of samples:

46/5=9.2

Then, lastly, subtract the mean from November by the mean of April:

9.6-9.2=0.4

8 0
3 years ago
On every three hamburgers that McDonald’s make they use 9 pickles how many pickles would they use on 99 burgers
Ksivusya [100]

Answer:

891 pickles :)

Step-by-step explanation:

all you do is multiply 9 and 99 and you should get 891

Hope this helped

4 0
3 years ago
Other questions:
  • 29 more than t is equal to 1.<br><br><br> What is the value of t?
    8·2 answers
  • Is one sixth equivalent to two twelves
    7·1 answer
  • NEED HELP 100 PTS
    6·2 answers
  • Bert’s cab company charges $1.00 plus an additional $3.00 per mile for a ride. Madeline’s cab company charges $3.00 plus an addi
    8·2 answers
  • Under the translation T(-5, -2) the point (1, 6) will become (-4, -4).<br><br> True<br><br> False
    12·2 answers
  • Help me please asap (not bots)
    14·2 answers
  • wright a poem that has a funny tone and follow the rubric I gave you. Why do you want world peace Lets make that our first line
    15·1 answer
  • What type of angle is this​
    8·1 answer
  • If sec theta&gt;0 and tan theta&lt;0, the terminal side of angle theta must lie in​
    14·2 answers
  • Points X and Y are in plane Z. Any point collinear with X and Y is also in plane Z
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!