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Elena-2011 [213]
3 years ago
9

A newspaper plans to conduct a survey for the upcoming presidential election in order to estimate the proportion of the populati

on, p, who supports a certain candidate. What is the smallest sample size needed to obtain an estimate that is within 4% of the true proportion p at the 96% confidence level
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
6 0

Answer:

660

Step-by-step explanation:

You might be interested in
Find all zeros of ƒ(x) = 2x^4 – 72x^2. Then determine the multiplicity at each zero. State whether the graph will touch or cross
AleksandrR [38]

Answer: See below

Step-by-step explanation:

<u>To find the factor,</u>

f(x) = 0

\begin{aligned}&2 x^{4}-72 x^{2}=0 \\&2 x^{2}\left(x^{2}-36\right)=0 \\&x^{2}\left(x^{2}-36\right)=0 \\&x \times x \times(x-6) \times(x+6)=0 \\&\mathrm{x}=0,0,6,-6\end{aligned}

<u>So,</u>

x = 0 multiplicity 2

x = -6 multiplicity 1

x = 6 multiplicity 1

For an even multiplicty, the graph touches the x-axis, and for an odd multiplicty, the graph crosses the x-axis

<u>Therefore,</u>

x = 0 multiplicty 2, Touch

x = -6 multiplicty 1, Cross

x = 6 multiplicty 1, Cross

7 0
2 years ago
Which ones are polynomials? Plz hurry
Gekata [30.6K]

Answer:

that don't matter just the pre test if u get a good grade on a pre test you don't got ot do the lesson.

Step-by-step explanation:

7 0
4 years ago
There are 16 children in juggling class.ten of them have learned to juggle 4 balls at a time. What fraction of them have NOT lea
pogonyaev

Answer:

6/16 or 3/8 (simplified) is your answer.

Step-by-step explanation:

10 children <em>has</em> learned how to juggle 4 balls at a time. There are 16 in all. You are solving for the amount of children that <em>has not learned</em>.

Subtract: 16 - 10 = 6

Set the amount gotten over the total: 6/16

6/16 or 3/8 (simplified) is your answer.

~

4 0
3 years ago
X = t - 3, y equals two divided by quantity t plus five
nekit [7.7K]
X = t - 3 is also -t = -x - 3 or t=x+3

Substitute it in

y=2/t+5
y=2/(x+3)+5

Let y=0 to solve for x

0=2/(x+3)+5
-5= 2/(x+3)
-10=x+3
-7=x

Now solve for t

t = x+3
t = (-7)+3
t = -4

Now we can solve for y

y = 2/(-4)+5
y = -0.5+5
y = 4.5

To check

4.5 = 2/(-4) + 5
4.5 = -0.5 + 5
4.5 = 4.5

-7 = -4 - 3
-7 = -7

Therefore
x = -7
y = 4.5
t = -4
5 0
3 years ago
Please can you work this out ( your supposed to use a calculator but mine is broken)
rosijanka [135]

Answer:

(5.4 \times  {10}^{5} ) + (5.3 \times  {10}^{6}) \\ (0.54 \times  {10}^{6}  ) + (5.3 \times  {10}^{6} ) \\  =   5.84\times {10}^{6}  \\  = 5840000

I hope I helped you^_^

6 0
3 years ago
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