Question 8 Assume the mean useful life of a Caterpillar motor is 500,000 hours and is normally distribut with a standard deviation of ± 50.000 hours. Calculate the percent of Caterpillar motors that last 605,000 hours or more. - 16% 0 34% 0.15% - 25%

Q: An automobile owner found that 20 years ago, 75% of Americans said that they would prefer to…

A: Givensample size(n)=56x=48p^=xn=4856=0.8571428571p^≅0.8571significance level(α)=0.10

Q: For -1.5 > Z < 1, the probability is

A:

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Q: Question 6 P is a probability density function on a Sample space of {2,4,8, 16} P(2) = 0.128 P(4) =…

A: Result: Sum of all probabilities is 1.

Q: Question 14 Consider a Geometric Distribution G(0.0177) What is the expected number of trials before…

A: We have given the  Geometric  distribution  G(0.0177)

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A:

Q: sing Appendix C-1 or Appendix C-2 find the p-value for each test statistic. (Round your answers to 4…

A: Given that  Test statistic  z=1.71 , z= -1.65 ,z= -182

Q: wing compressive strengths (in psi). 3223      3329      3269      3244      3258      3325…

A: Given that data  3223      3329      3269      3244      3258      3325      3204      3296…

Q: Question 15 Consider a Geometric Distribution G(0.0453) What is the standard deviation for the…

A: Given X~Geom(0.0453)

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A:

Q: Sum of Squares Between Groups (Treatment) 6,000.0 Within Groups (Error) Total Source of Variation…

A: Hint: The source of variation given in the problem above tells the best test statistic to test the…

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A: It is given that the data into contingency table gives the results of a sample survey of South…

Q: For a population with a mean equal to 150 and a standard deviation equal to 25, calculate the…

A: given data,μ=150σ=25standard error of the mean  formula =σn

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A: given data μ=200σ=9normal distribution P(200&lt;x&lt;225)=?

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A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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A: Here, mean is 165, standard deviation is 2 5. Sample is 77. We will use z-standard normal…

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A: given data normal distribution μ=371σ=11P(386&lt;x&lt;397)=?

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A: Given that  Sample size n =29 Sample mean=8.7 Population standard deviation =2.6

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: GivenThe area under the curve to the left of z is shaded and labeled 0.1922

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A: The values provided in the question are as follows : Mean (µ) = 14.8 Standard deviation (σ) = 1.2…

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A: It is given that the data set is 9,9,9,9,9,9,9 Here, n = 7 is odd.

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A: Here we have to the given questions in only Yes or No type.

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A: Given, Walmart's Net Sales data per quarter from 2015 to 2021 as Year Quarter Net Sales$×108…

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A: Given: Mean μ = 66 grams Standard deviation σ = 1.86 grams Formula used: Z-score = X-μσ Z-score =…

Q: 10.) Human blood can contain the A antigen, the B antigen, both the A and B antigens, or neithea…

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A: given data μ=67σ=19n=47normal distribution

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A: It is given that  Total cars = 719 Total Silver cars = 63 Total 2-3 moving violations = 238

Q: The mean potassium content of a popular sports drink is listed as 149 mg in a 32-oz bottle. Analysis…

A: a) Suppose μ is the population mean potassium content in a particular sport drink.

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A: Given that  Level of significance =alpha =0.05

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A: Please find the explanation below. Thank you.

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A: It is given that  P( on-time ) = p = 80% = 0.80 Sample size, n = 20     Note: According to Bartleby…

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: The area under the curve to the right of z is shaded and labelled 0.9292.

Q: Using a standard normal distribution, find c, given the following probabilities. Round your answers…

A: Given: P(Z&lt;c) = 0.432 P(Z&gt;c) = 0.412

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A: Given,sample size(n)=400population proportion (P)=0.5sample proportion(p¯)=0.5standard…

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A: GivenFordn1=50x1=$20.50σ1=$2.50Ferrarin2=70x2=$10.25σ1=$2.00

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A: GivenMean(μ)=55.1standard deviation(σ)=3.7

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A: From  given data we have : mean x=12.01 the standard deviation s=0.13 n=49

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Q: Pele took all samples of size n=40 from a population of test scores. He found that on average, the…

A: Introduction: It is required to find the standard error and expected value of the dataset.

Q: A large corporation employs 24640 individuals. The average income of all employees is $86042, with a…

A: Question 7: It is given that the average income of all employees is $86042 with a standard deviation…

Q: The average height of females in the freshman class of a certain college has historically been 162.5…

A: Consider that μ is the true average height of females in the freshman class in a certain college.