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erma4kov [3.2K]
3 years ago
12

A 2011 survey, by the Bureau of Labor Statistics, reported that 91% of Americans have

Mathematics
2 answers:
vovikov84 [41]3 years ago
6 0

Answer: A , type I

Step-by-step explanation:

Andrew [12]3 years ago
4 0

Answer:

A. Type I error.

Step-by-step explanation:

Hello!

The hypotheses tested were "the proportion of people who have paid leave has decreased" vs "the proportion of people who have paid leave has either increased or hasn't changed"

The researcher obtained a p-value of 0.0271 and rejected the null hypothesis. The study concluded that the proportion of people on paid leave has decreased.

When conducting a hypothesis test there are four possible situations derived from the combination of the decisions made and the nature of the hypothesis:

1. Reject the null hypothesis when the hypothesis is false (This is a correct decision) (True positive, TP)

2. Reject the null hypothesis when the hypothesis is true (This decision is also known as Type I error) (False positive, FP)

3. Fail to reject the null hypothesis when the hypothesis is true (This is a correct decision) (True negative, TN)

4. Fail to reject the null hypothesis when the hypothesis is false (This decision is also known as Type II error) (False negative, FN)

Each of these decisions has an associated probability:

1. P(TP)= 1-β (Known as the power of the test)

2. P(FP)= α (Known as significance level)

3. P(TN)= 1-α

4. P(FN)= β

In this example, since the decision made was to reject the null hypothesis, so the researcher may stand in two possible positions, one is that he took the right decision and the second one is that he rejected a true null hypothesis. The type of error he might commit is a Type I error with an associated probability of α.

I hope it helps!

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Solve for g:<br> 3/16=(-5/4)+g
Musya8 [376]

Answer:

g = 23/16

Step-by-step explanation:

3/16 = (-5/4) + g

g = 5/4 + 3/16

g = 23/16

7 0
2 years ago
A liquid mixture of 56 ounces contains 14 ounces of sugar and the rest is water. What is the ratio of swar to water
Pachacha [2.7K]

Step-by-step explanation:

Ounces of water = 56 - 14 = 42 ounces

Ratio of sugar to water

56 : 42

8 : 6

4 : 3

6 0
3 years ago
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Parallel lines s and t are cut by a transversal r. ​
AURORKA [14]

Answer:

the answer is <3 and 5

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3 years ago
A child has a box full of colored building blocks. She will choose one block without looking. The odds against choosing a blue b
Mama L [17]

(a) A child has a box full of colored building blocks. She will choose one block without looking. The odds against choosing a blue block are 4/7. What is the probability of choosing a blue block?

Answer:

7/11 is the probability of choosing a blue block.

Step-by-step explanation:

We need the probability of choosing a blue block,

Odds:

The odds of an event is the ratio of the probability of an event to the probability of its complement. In other words, it is the ratio of favorable outcomes to unfavorable outcomes.

The odds against choosing a blue block are 4/7 means. In 11 chances, 4 events will happen in which blue block will not be chosen and 7 events will happen in which blue blocks will be chosen.

So, the probability of not choosing the blue block is 4/11.

Probability of choosing blue block: complement of 4/11 which is equal to 7/11.

(b) Amanda is playing a role-playing game with her friends. She will roll dice to determine if her character unlocks a treasure chest. The probability of her character unlocking the treasure chest is 13/20. Find the odds in favor of her character unlocking the treasure chest.

Answer:

The odds in favor of her character unlocking the treasure chest are 13/7.

Step-by-step explanation:

The probability of Amanda's character unlocking the treasure chest is 13/20.

It means, in 20 total chances, 13 times an event will happen where Amanda's character unlocks the treasure chest while the rest 7 times, her character would not open treasure chest.

Favorable events: 13

Unfavorable events: 7

Hence, the odds in favor of her character unlocking the treasure chest are 13/7.

7 0
3 years ago
Which of the following is an example of a proper fraction?
nirvana33 [79]
The numbers should be less than the denominator, therefore i think it's 5/9 , because the rest have a numerator greater than the denominator, even the 3 . it's written as 3/1 and 3 >1.
4 0
3 years ago
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