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BaLLatris [955]
3 years ago
8

The kingston review (kr) is testing a new gmat question. the kr wants to determine what proportion of test-takers will answer th

e question correctly, in order to assess its difficulty. in a random sample of 144 test-takers, 75% answered the question correctly. what is the 95% confidence interval for the proportion of test-takers answering the question correctly?
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
7 0
[67.9 %, 82.1 %] is the 95% confidence interval for the proportion of test-takers answering the question correctly. So we have [67.9 %, 82.1 %] In a random sample of 144 test-takers with 75% answered the question correctly. So the answer in this question is [67.9 %, 82.1 %].
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Many reasons

Step-by-step explanation:

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4 0
3 years ago
George spent $21.25 on five movie tickets. How much was each movie ticket?
Sunny_sXe [5.5K]

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7 0
3 years ago
Who know how to do this ?
nadya68 [22]
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3 0
3 years ago
The function f(t) = 3(1 + 0.5)^nt models the weight in pounds of an alligator each year from its birth. Based on the function, w
masha68 [24]
<h2>Hello!</h2>

The answer is: 50% (0.5)

<h2>Why?</h2>

Exponential growth equations are use to predict the growth (in function of time) using proportional information.

We can calculate the exponential growth using the following formula:

y=S(1+r)^{t}

Where,

S, is the starting value

r, is the growth rate

t, is the time

So, we are given the function:

f(t) = 3(1 + 0.5)^{nt}

Where,

f(t), is the function,

3, is the starting value (lb)

0.5 (50%) is the growth rate

nt, is the time elapsed.

Hence,

From the given function, we know that the growth rate is equal to 0.5, and it's equal to 50%.

We can turn the growth rate given in real numbers to percent value by multiplying by 100

GrowthRate(Percentage)=0.5*100=50(Percent)

So, the growth rate is 50%.

Have a nice day!

5 0
3 years ago
If a triangle has three angles that add up to 180 degrees angle a is 20 angle b 50 how much is angle c?
Scorpion4ik [409]
50+20=70
180-70=110°
angle c= 110°
4 0
3 years ago
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