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dezoksy [38]
3 years ago
8

A sample of 250 people resulted in a confidence interval estimate for the proportion of people who believe that the federal gove

rnment's proposed tax increase is justified is between 0.14 and 0.20. Based on this information, what was the confidence level used in this estimation?
Approximately 1.59
95 percent
Approximately 79 percent
Can't be determined without knowing
Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0

Answer: Approximately 79 Percent

Step-by-step explanation:

The confidence level used in this estimation is approximately 79 percent.

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The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is r
svp [43]

Answer:

0.1 = 10% probability that the class length is between 51.5 and 51.7 min, that is, P(51.5 < X < 51.7) = 0.1.

Step-by-step explanation:

A distribution is called uniform if each outcome has the same probability of happening.

The uniform distributon has two bounds, a and b, and the probability of finding a value between c and d is given by:

P(c \leq X \leq d) = \frac{d - c}{b - a}

The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min.

This means that a = 50, b = 52

If one such class is randomly selected, find the probability that the class length is between 51.5 and 51.7 min.

P(51.5 \leq X \leq 51.7) = \frac{51.7 - 51.5}{52 - 50} = \frac{0.2}{2} = 0.1

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3 years ago
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Answer:

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ANSWER

The correct answer is C

EXPLANATION

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This implies that, x=8 units.

Using Pythagoras Theorem,

{y}^{2}  =  {8}^{2}  +  {8}^{2}

This implies that:

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5 0
3 years ago
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slava [35]

Answer:

\sqrt[4]{\frac{5}{7} }

Step-by-step explanation:

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~Apply radical rules

^4√5/7

Best of Luck!

5 0
3 years ago
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