An electrical firm manufactures light bulbs that have a length of life that is normally distributed with mean equal to 820 hours and a standard deviation of 49 hours. Find the probability that a bulb burns between 764 and 853 hours.

Q: Fundamentals of Business Statistics 7. 12 dice were thrown 4096 times and a throw of 6 was reckoned ...

A:  

Q: Problem 3 Solve the following LP of normal maximization form by the simplex method and obtain the op...

A: The simplex method (BigM method) Max z=y1+y2-2y3subject to y1+2y2≤5y1-y2-3y3≤4and y1≥0,y2≥0,y3≥0 The...

Q: If P(0 < Z < 0.53) = 0.2019 and P(0 < Z < 0.21) = 0.0832, find the value of P(0.21 < Z < 0.53)?

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Q: a)  From Life Cycle Cost (LCC) Analysis, would you Brand X or Brand Y crane? What is your recommenda...

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A: n=36, σ=4, μ=8, x̄=7  

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Q: 11. A skilled typist on routine work, kept a record of mistakes per day during 300 working days. The...

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Q: Fill in the P (X=x) values to give a legitimate probability distribution for the discrete random var...

A: Here use total probability law

Q: What number completes the folloming distribution containing 3 trials? P(X) 0.25 0.35 0.30

A: Given data, What is the probability that distribution contains 3 trials?

Q: A. Directions: Find the area under the standard normal distribution curve. Between z = 0 and z = 0.0...

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

Q: 4. [0.17/0.33 Points) DETAILS PREVIOUS ANSWERS BBUNDERSTAT12 9.1.014.5S. MY NOTES ASK YOUR TEACHER P...

A: The objective is to compute r 

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A: Open-ended and closed-ended questions have their respective advantages and disadvantages.

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Q: To determine the effect of a growth stimulant, 24 feedlot beef cattle were randomly assigned to thre...

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Q: An Internet survey asked 525 Facebook users whether the amount of time they spent using Facebook was...

A: From the provided information,

Q: n light of evidence about how COVID-19 spreads, the CDC recommends that people wear a cloth facemask...

A: Given data,  

Q: Problem 3 Consider the following simplex tableau for a maximization problem: Row x1 x2 X3 X4 X5 rhs ...

A:

Q: A recent study found that 40% of all people over age of 62 is selected. If a random sample of 5 peop...

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Q: In how many ways can 12 athletes be amarded a'Ist place medal, znd place medal, and a third place me...

A: P(F/E)=0.6and P(E)=0.4 P(F/E)=P(F and E)/P(E)  

Q: What is the area under the normal curve between z=1.15 and z=-1.85? [Hint: P(-1.85 < Z <0) = 0.4678 ...

A: Find P ( -1.85 &lt; Z &lt; 1.15 ) =?  

Q: (i) The sum of all the items, (ii) The sum of squares of all the items.

A: Here use formula of mean and standard deviation 

Q: Determine the z-value of x=25 if H 16 and O 3. %3D

A:

Q: 6. Answer the following questions using your standard normal distribution table. A. Wechsler adult ...

A: Given that, Wechsler adult intelligence scores vary according to a Normal distribution with μ=110 an...

Q: Use the 95% confidence level and two-tailed test to ans 1. What is a? 2. Is the Central Limit Theore...

A: Here Given  Sample mean=x¯=110 Sample sd=s=14 Sample size=n=50 Population mean=μ=100 Population sd=σ...

Q: A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Liste...

A: We have given that,  The data set is,  0.51, 0.72, 0.11, 0.91, 1.28, 0.53, 0.94 Then,  We will find ...

Q: Example 20. Calculate the median from the following data : Wages Number of workers Less than 100 Les...

A: Solution is given:

Q: 5. between z 0. 92 and z = 1. 75 6. to the right of z 1. 32

A: Given5)between z=-0.92 and z=1.75

Q: What are the odds that a randomly selected child has been vaccinated

A: It is given that P(vaccinated) = 85% = 0.85

Q: Problem 1: Asking Embarrassing Questions, Politely When doing polling, for instance to figure out ho...

A: Given information:- x = 70 n = 100 p^N=xn=70100=0.70

Q: For the year 2017, 90% adults in the U.S. population aged 25 and older had completed high school. Th...

A: Given that For the year 2017, 90% adults in the U.S. population aged 25 and older had completed high...

Q: 3.1 If Y is a random variable with moment-generating function m(t) and if Z is given by Z = pY + q. ...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

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Q: Given the following contingency table for Hair colour and Eye colour, find the value of x. Is there ...

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Q: formula for converting a normal distribution score to a standard normal distribution score?

A: Normal distribution is an important continuous probability distribution because, as sample size incr...

Q: You are given the following information: (i) (Tä)r:10 = 40.0 (ii) är:10 = 7.0 (iii) i = 0.04 (iv) qa...

A: Given  ?a¨x:10=40 a¨x:10=7 i=0.04 qx=0.02

Q: Answer with graph. Thank you!   3. A distribution of sample means yields a known population mean o...

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Q: Illustration 11.20. Karl Pearson's coefficient of skewness of a distribution is +40. Its standard de...

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Q: ii) Let T = where Z is a normal random variable and x2 is chi-square with n degree of freedom. Use a...

A: Given that Z~N0, 1 and Let W~χ2n. Then, the square root of W, W=W~ follows chi-square distribution w...

Q: each event listed, indicate which definition(s) of probability would be appropriate (circle them), a...

A: Given: The height of great great grand father is more than 6 feet.  The appropriate choice of probab...

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Q: The number of traffic accidents per week in a small city has a Poisson distribution with the standar...

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Q: 8. If p, = 0.37, what is q,? %3D 0.37 0.63 a. С. b. 0.73 d. 0.53 reiection region. This

A: 8) given that : P0 = 0.37 Find q0 = ???  By using the formula P P  + q = 1

Q: 2. Calculate the mean and the variance of the normal distribution N(u,02) from its moment generating...

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Q: A corporation that maintains a large fleet of company cars for the use of its sales staff is interes...

A: Given data is2173,2386,1945,2494,2694,2084,2093,2394,2668sample size(n)=9

Q: Which of the following is a non-parametric test?

A: Given that  We have to find which of these is non parameter   Z test  ANOVA  T test  Chi square   

Q: Sind the range of weight of 10 students from the following : 41 11 14 65 . 73 84 53 35 71 55

A:

Q: Suppose a surveyor wants to conduct a phone survey about a new song. She plans to take a simple rand...

A: The bias is the error that occur in the population. The information may taken from the sample but do...

Q: If the area to the left of x in a normal distribution is 0.842, what is the area to the right of x? ...

A:

Q: Problem 1: Asking Embarrassing Questions, Politely When doing polling, for instance to figure out ho...

A: Given information: 4) x = 70 n = 100 p^N=xN=70100=0.70