3 years ago

Can anyone help me find the answer to this question?

1 answer:

galina1969 [7]3 years ago

3 0

Find a 92.9% confidence interval for the difference p1−p2p1−p2 of the population proportions.

Hint: For a level of confidence (1−α)⋅100%(1−α)⋅100%, z∗z∗ is the value that leaves an area of (1−α)/2(1−α)/2 to its right in a standard normal distribution

I hope that helps

You might be interested in

Find the total surface area of the following cylinder: r=3 cm 3 cm SA = [? ]n cm2

OLga [1]

Answer:

36

Step-by-step explanation:

5 0

3 years ago

If it take Tracy 1/4 of an hour to do her homework,and it takes Trent 3/4 of an hour to do his homework,how much total time does

NeX [460]

It takes them 45 minutes if they start at the same time, but adding them together it would be an hour.

7 0

3 years ago

Read 2 more answers

10) 9 people can paint a bridge in 5 hours,

ale4655 [162]

Step-by-step explanation:

The number of people to paint the bridge is inversely proportional to the number of hours it takes.

(If there are more people, it will take less time etc.)

9 people can paint the bridge in 5 hours.

=> 2 people can paint the bridge in 5 * (9/2) = 22.5 hours.

8 0

3 years ago

A psychology professor at a university is interested in determining the proportion of undergraduate students at her university w

mario62 [17]

Answer:

No, because the professor’s question had 3 possible answers

6 0

3 years ago

What is the vertex of a parabola having the equation y = –2(x – 5)2 + 7? Which direction does the parabola open?

Vika [28.1K]

$y = -2(x-5)^2 + 7$

That's vertex form for a parabola $y=a(x-p)^2+q$ and we read off vertex (p,q) as

Answer: Vertex (5,7)

The negative a tells us this is a downward opening parabola (upside down from the usual $y=x^2$ . I remember CUP - Concave Up Positive; here a is negative so not a cup, instead concave down. The same rule applies to second derivatives in calculus so memorize it now and use it later.

Answer: downward

7 0

4 years ago