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OverLord2011 [107]
3 years ago
10

Which sample size will produce the widest 95% confidence interval, given a sample proportion of 0.5?

Mathematics
1 answer:
valentinak56 [21]3 years ago
3 0

Answer:

D. 50

Step-by-step explanation:

Width: 2z × sqrt(var/n)

Interval is wider when:

z is higher

n is smaller

In the options, least value of n is 50

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I believe the answer is 0.5 sorry if I’m wrong
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Read 2 more answers
What is the value of w?
Nonamiya [84]

Answer:

17

Step-by-step explanation:

4w = w + 51

3w = 51

w = 51 : 3

w = 17

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2 years ago
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erik [133]

Answer:

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3 years ago
X+9=2x-3<br> FIND THE X!!!!!!
Ierofanga [76]

Answer:

x = 12

Step-by-step explanation:

<u>To find "x"</u>, we need to <u>isolate it</u>. This means move "x" to the left side, and everything else to the right side.

When moving a number, do its <u>reverse operation</u> to the entire equation.

x + 9 = 2x - 3

x - 2x + 9 = 2x - 2x - 3         Subtract 2x from both sides

-x + 9 = -3                              

-x + 9 - 9 = -3 - 9           Subtract 9 from both sides

-x = -12

-x/-1 = -12/-1          Divide both sides by -1 to get rid of the negatives

x = 12                     Final answer

Check your answer. Split the equation for the left and right sides. Substitute "x" for the answer "12".

LS:   (left side)

x + 9

= 12 + 9              Add

= 21

RS:   (right side)

2x - 3

= 2(12) - 3            Multiply before subtracting

= 24 - 3               Subtract

= 21

Both sides equal to 21 when "x" is 12.

LS = RS          left side equals right side

Therefore the answer is correct.

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4 years ago
PLEASE HELP DUE IN 10 MIN ITS A FINAL
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Answer:

intersecting

Step-by-step explanation:

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