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Natali5045456 [20]
3 years ago
8

A graduate student wanted to estimate the average time spent studying among graduate students at her school. She randomly sample

d graduate students from her school and obtained a 99% confidence interval of (17,25) hours/week. Which of the following would be true if the level of confidence was lowered to 95%? Choose the correct answer below.A. The width of the confidence interval would remain the same.B. The width of the confidence interval would be smaller.C. The width of the confidence interval would be larger.D. More information is needed to determine what would happen to the width of the confidence interval.
Mathematics
1 answer:
expeople1 [14]3 years ago
3 0

Answer:

B. The width of the confidence interval would be smaller.

Step-by-step explanation:

By reducing the confidence level from 99% to 95%, the student assumes that there is more uncertainty about the new confidence interval than the previous one. That, being said, since the results aren't as certain, the confidence interval is widened towards a central average point because the new interval isn't as accurate.

Therefore, the answer is B. The width of the confidence interval would be smaller.

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Two eighth notes equal one quater note in duration.

Step-by-step explanation:

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2 years ago
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The triangles are similar. If QR = 9, QP = 6, and TU = 19, find TS. Round to the nearest tenth.
Feliz [49]
QR=9
QP=6
TU=19
TS=?
Okay so the triangles are kindred, now the equation can be made
9/16=6/x
So now we are going to cross multiply
9x=114
Now divide both sides by
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Your answer is:
TS=12.6
4 0
3 years ago
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Lelechka [254]

B is the correct answer. 3(x+1)=24

6 0
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Lina20 [59]

Answer:70

Step-by-step explanation:

7 0
3 years ago
I need help with this!
timurjin [86]

Answer:

a=11

Step-by-step explanation:

Let's solve your equation step-by-step.

√a+5=4

Solve Square Root.

√a+5=4

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Check answers. (Plug them in to make sure they work.)

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