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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

You might be interested in
H(x) = 5.7 −19x<br><br> A. <br> -127.3<br> B. <br> -138.7<br> C. <br> 0.67<br> D. <br> 138.7
Vilka [71]

Answer:

x = 0.3 (see below)

Find the x intercept/zero.

To find x intercept/zero, subsitute H (x) = 0.

0 = 5.7 - 19x

Move the variable to the left hand side and change the symbol.

19x = 5.7

Now, divide both sides.

x = 0.3

Solution is 0.3

Alternate solution is x = 3/10.

Hope it helps!

6 0
4 years ago
What is an equation of the line that passes through the points of (0,-4) and (-4,6)
dusya [7]

Answer:

y = -5/2x - 4

Step-by-step explanation:

(0,-4) and (-4,6)

Slope:

m=(y2-y1)/(x2-x1)

m=(6+4)/(-4-0)

m=10/-4

m= -5/2

Slope-intercept:

y - y1 = m(x - x1)

y + 4 = -5/2(x - 0)

y + 4 = -5/2x

y = -5/2x - 4

8 0
3 years ago
help plz The total cost of a shirt and a jacket was $99.34. If the price of the shirt was $7.76 less than the jacket, what was t
GalinKa [24]

Answer: Shirt costs $45.79

Step-by-step explanation:

jacket- x

shirt (x-7.76)

x+x-7.76=99.34

2x - 7.76 = 99.34

2x = 107.10

x=53.55

Jacket costs 53.55 and Shirt costs 53.55-7.76= 45.79

6 0
3 years ago
0.25 is inches distance 5.5 is distance what is process
PIT_PIT [208]
Unfortunately, your problem statement appears to be incomplete.  What distance are you talking about?  Have you an illustration to share?  How does 0.25 inches fit into this problem?  Please try again.  Double-check to ensure that you have shared all of the problem you wish to solve.
8 0
3 years ago
Find three consecutive odd integers whose sum is 87
Vesna [10]
X + (x + 2) + (x + 4) = 87
3x + 6 = 87
3x = 81
x = 27

The numbers are 27, 29, and 31
8 0
4 years ago
Read 2 more answers
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