Assuming we are working with a random variable that follows a normal distribution, which of the following is true? 1. To compute the probability of a particular range of values, we should use invNorm; to find a value given a probability, we should use normalcdf 2. To compute the probability of a particular range of values, we should use invNorm; to find a value given a probability, we should use normal

Q: A computer encoder makes an average number of 5 errors per page. Suppose he/she is asked to encode a…

A: pmf of poisson distribution is = f ( k ) = e^-k  k^x / x!where       k  = parameter of the…

Q: Determine if the finite correction factor should be used. If so, use it in your calculations when…

A: n=50,μ=2.882,σ=0.009

Q: Ms. Berry is concerned about the average amount of food Fred, the elephant, eats each day. Zookeeper…

A:

Q: Determine if the finite correction factor should be used. If so, use it in your calculations when…

A:

Q: An electrical appliance made by company A has an average life of 2500 hours, with a standard…

A: Given that  An electrical appliance made by company A has an average life of 2500 hours, with a…

Q: There are two machines available for cutting corks intended for use in wine bottles. The first…

A: From the provided information, For first machine; Mean (µ1) = 3 Standard deviation (σ1) = 0.10 For…

Q: In a certain computer card game, the player is awarded 5 points for each card that is moved to a…

A: The correct option is B: The expected value is -6.5, and the standard deviation is…

Q: snip

A: Given: Average renovation time is, μ1=4 weeks. Standard deviation of renovation is, σ1=1 week.…

Q: The average number of work emails received in a day is 27.  If the variance is known σ2 = 3.45…

A: GivenMean(μ)=27vatiance(σ2)=3.45standard deviation(σ)=3.45=1.8574

Q: A small ferry runs every half hour from one side of a large river to the other. The number of cars X…

A: The objective of the question is to define the random variable M, which represents the money…

Q: In each one identify the distribution, the parameters with values (i.e. n, p etc) and what is meant…

A: Given  -   Probability of success = p = 25% = 0.25                 Probability of failure  = 1 - p =…

Q: Since the heights of people in USA is normally distributed, what is the probability that an…

A: Given data Normal distributionP(x>μ+2σ) = ?

Q: A test score in the top 2% is required. The test is designed to have a mean of 100 and a std dev. of…

A: It is given that the test is normally distributed with mean 100 and standard deviation is 15. The…

Q: The average height of all the workers in a hospital is known to be 66.7 inches with a standard…

A: Let  X be the random variable from normal distribution with mean (μ) = 66.7, standard deviation (σ)…

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A:

Q: Determine if the finite correction factor should be used. If​ so, use it in your calculations when…

A: In a sample of 700 gas​ stations, the mean price for regular gasoline at the pump was $2.884 per…

Q: please ask a and

A: a)PX is even∪X≥7=PX=2+PX=4+PX=6=f2+f4+f6=0.25+0.1+0.1=0.45   Therefore, the probability that X is…

Q: Please help me answer

A: Question 1To find the variance, we need to use the formula below. Formula:Variance=∑[x2×P(x)]−μ2…

Q: According to a certain website, the average daily time spent on social networking by internet users…

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Q: You may need to use the appropriate appendix table or technology to answer this question. The state…

A: Note :As per the Bartleby guildlines we have to solve first three subparts and rest can be…

Q: The average stock price for a company is $30, and the variance is 67.24. Assume that the stock…

A: It is assumed that the stock prices follow normal distribution. The mean stock price is $30 and…

Q: Manufacture of a certain component requires three different machining operations. Machining time for…

A: The question is about normal distributionGiven :Mean machining time of Machine 1 (  ) = 30 minStd.…

Q: estaurant in Ohio, the number of minutes that diners spend at the table has a major impact on the…

A: X~N( μ , ?)μ=89 , ?=17Z-score =( x - μ )/?

Q: Manufacture of a certain component requires three different machining operations. Machining time for…

A: given data μ1 = 20 minμ2 = 30 minμ3 = 15 minσ1 = 2 minσ2 = 1  minσ3 = 1.3 minP( total time <1…

Q: Degree of Injuny Seurity Measures no precaution Seat belt only (s) seat bolt and air bag (2) sturdy…

A: Dear student, We are allowed to solved first 3 parts only, Ask the remaining parts separately

Q: What is the probability it will take him more than 1020 shots to hit it? f. What is the expected…

A: here given ,  A novice marksman is shooting at a target 1000 feet away. The probability of his…

Q: Q6- Assume the probability that a maple tree at age 5 grows less than 150 cm is equal to 0.3. If the…

A: As you had asked to do 6th question only so i had solved it only

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: Given information, The new population of pilots has normally distributed weights with a mean of 149…

Q: 5. A manufacturer of digital recorders claims the distribution of life of its recorders can be…

A: Let X1,X2,....,X64 be the samples from this population. Sample mean, X = 164∑i=164Xi Xi are normally…

Q: b. It was determined that, in his one day international cricket career, West-Indian batsman Carl…

A: An average of 3 boundaries per matchLet "x" be that Hooper will hit boundariesx~Poisson()P(X=x)=

Q: f z

A: As,  z is a standard number variable, so Mean (μ) = 0 Standard Deviation (σ) = 1 So, Z = z-01~N(0,1)

Q: News articles that link to related stories are widely used in Web marketing. With a large number of…

A: Below is the clarified and detailed explanation for above tricky question ....if you are ok with my…

Q: nee udents in a primary school are being tested to see how good their fine motor skills are. The to…

A: Given that.   X~N( μ , ?)   μ=14     , ?=4.6   Z-score =( x - μ )/?

Q: The probability that an individual is left-handed is 0.20. Let the random variable X be the number…

A: Given, probability that an individual is left handed is, p = 0.20 n = 20

Q: Find the probabilities that a random variable having the standard normal distribution will take on a…

A:

Q: b. The peak temperature in degrees Fahrenheit, on a July day in Antaratica is a normal random…

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Q: sample of 31 years of rainfall for California and a sample of 49 years of rainfall for New York has…

A: Given information for State of California: Mean, μ=22. Standard deviation, σ=4. Sample size, n=31.…

Q: (d) What is the variance of the time it takes for a person to move? (e) Among ten people, what is…

A: Given that The annual probability of moving is 0.17

Q: The average age of residents in a large residential retirement community is 69 years with standard…

A: From the provided information, Mean (µ) = 69 years Standard deviation (σ) = 5.8 years X~N (69, 5.8)…

Q: If X, X2, ., X are i.i.d. normal random variables, then s also has an exact normal distribution.…

A: Solution   If the samples are drawn from the normal population,then the sampling variance has not…

Q: b. Let X1, X2, X3, and X4 represent the weight of shipment packages at a certain shipment facility.…

A: X1,X2,X3 and X4 are the independent random variables. The mean of the random variables are μ1=0.8,…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.