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Statistics-And-Probability

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Home/Statistics-And-Probability

ITtutoria Latest Questions

James Portman
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James Portman
Asked: April 13, 2022In: Statistics-And-Probability

4) Given that z is a standard normal random variable, find z for each situation (using…

  • 19

4) Given that z is a standard normal random variable, find z for each situation (using excel): The area to the left of z is .9750. The area between 0 and z is .4750. The area to the left of z is ...

  • 2 2 Answers
  • 88 Views
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lyytutoria
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lyytutoriaExpert
Asked: April 13, 2022In: Statistics-And-Probability

What is at the “heart” of hypothesis testing in statistics? (This is a reading assessment question….

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What is at the “heart” of hypothesis testing in statistics? (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.) Choose ...

hearthypothesistesting
  • 1 1 Answer
  • 12 Views
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lyytutoria
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lyytutoriaExpert
Asked: April 13, 2022In: Statistics-And-Probability

I Previous Answers BBUnderStat12 12.001 Explain the difference between a stratified sample and a cluster sample….

  • 9

Explain the difference between a stratified sample and a cluster sample. (Select all that apply). 1) In a stratified sample, every sample of size n has an equal chance of being included. 2) In ...

clusterdifferencestratified
  • 1 1 Answer
  • 109 Views
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ptntuto
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ptntuto
Asked: April 13, 2022In: Statistics-And-Probability

Consider the system of components connected as in the accompanying picture. Components 1 and 2 are…

  • 20

Consider the system of components connected as in the accompanying picture. Components 1 and 2 are connected in parallel, so that subsystem works if and only if either 1 or 2 works; since 3 and 4 are connected in ...

independent events
  • 1 1 Answer
  • 144 Views
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ptntuto
  • 31
ptntuto
Asked: April 13, 2022In: Statistics-And-Probability

The error involved in making a certain measurement is a continuous rv X with the following…

  • 31

The error involved in making a certain measurement is a continuous rv X with the following pdf. (a) Sketch the graph of f(x) (b) Compute P(X > 0) (c) Compute P(−1 < X < 1) (Enter your answer ...

probability density function
  • 1 1 Answer
  • 40 Views
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lyytutoria
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lyytutoriaExpert
Asked: April 13, 2022In: Statistics-And-Probability

Determine zα for the following.(Round your answers to two decimal places).

  • 7

Determine zα for the following. (Round your answers to two decimal places.) (a)    α = 0.0089 (b)    α = 0.09 (c)    α = 0.707 Please explain where and how you got the answer. Thank you.

decimaldetermine
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  • 44 Views
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lyytutoria
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lyytutoriaExpert
Asked: April 11, 2022In: Statistics-And-Probability

Find the critical value Za/2 that corresponds to the given confidence level

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Find the critical value Za/2 that corresponds to the given confidence level: 91%

criticalvalue
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  • 32 Views
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ptntuto
  • 29
ptntuto
Asked: April 11, 2022In: Statistics-And-Probability

Consider the following sample of observations on coating thickness for low-viscosity paint

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Consider the following sample of observations on coating thickness for low-viscosity paint.   0.85      ...

normal distribution
  • 1 1 Answer
  • 120 Views
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ptntuto
  • 14
ptntuto
Asked: April 11, 2022In: Statistics-And-Probability

Select all of the following statements that are true four years from now, in the year 2020

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Select all of the following statements that are true four years from now, in the year 2020. Select: 2 The Nano segment will demand 5,411 thousand units The Elite segment will demand 5,878 thousand units The Thrift segment will demand 7,751 thousand units The ...

market segments
  • 1 1 Answer
  • 139 Views
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kttutoria
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kttutoriaExpert
Asked: April 10, 2022In: Statistics-And-Probability

Construct a confidence interval of the population proportion at the given level of confidence. x =…

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Construct a confidence interval of the population proportion at the given level of confidence. x = 860, ...

population
  • 2 2 Answers
  • 39 Views
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