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fomenos
2 years ago
9

The number 0.6064 represents the area under the standard normal curve below a particular z-score. What is the Z-score? Can you p

lease show me how this question works and to express the answer as a decimal to the nearest hundredth. Thanks
Mathematics
2 answers:
Rudiy272 years ago
4 0
P(z < x) = 0.6064 - 0.5 = 0.1064

From the normal distribution table
P(z < 0.27) = 0.1064

Therefore the z-score is 0.27


SashulF [63]2 years ago
4 0

Answer:

z=0.27

Step-by-step explanation:

Let x represent the z-score.

We have been given that the The number 0.6064 represents the area under the standard normal curve below a particular z-score.

Since the area under normal distribution curve that corresponds to our z-score is 0.6064, so we can set an equation as:

P(z

From normal distribution table we get,

P(z

Since the area 0.6064 under normal distribution corresponds to z-score of 0.27, therefore, our z-score s 0.27.

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34kurt

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198

Step-by-step explanation:

5 0
2 years ago
Each time Kristine gets paid, she spends $20 and saves the rest. If the amount Kristine earns is represented by x and the amount
faust18 [17]

We are given that Kristine spends $20 and saves the rest each time she get paid.

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Where x represents the amount Kristine earns and y represents the amount she saves.

Kristine spends $20. Therefore b= -20.

Plugging mx as just x and b=-20.

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4 0
2 years ago
Read 2 more answers
Ray feeds his dog 0.12 kilogram of dry dog food each
Julli [10]

Answer:

The smallest bag that has enough food to feed his bag for one month

 = 3.6 kilogram

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The quantity of dry food Ray feeds his dog = 0.12 kilogram

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3 0
2 years ago
At the beginning of the business day, a bank's vault held $575,900. By the end of the day, $(3.5 103) had been added to the vaul
Likurg_2 [28]

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5 0
2 years ago
From a survey of coworkers you find that 32​% of 150 have already received this​ year's flu vaccine. An approximate 98​% confide
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Answer:

a) Narrower

b) Narrower

c) Wider            

Step-by-step explanation:

We are given the following in the question:

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Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

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If we increase the sample size, thus the standard error of the interval decreases.

Since the standard error decreases, the confidence interval become narrower.

b) Confidence level had been 90​% instead of 98​%

As the confidence level increases, the confidence interval becomes narrower. This is due to a smaller value of z-statistic at 90% confidence level.​

c) Confidence level had been 99​% instead of 98​%

As the confidence level increases, the width of the confidence interval increases and the confidence interval become wider. This is because of a larger value of z-statistic at 99% confidence interval.

4 0
2 years ago
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