n 4) The average height of a group is 165 cm and its standard deviation is 15 cm. Assuming that the lengths show normal distribution; a) Find the probability that a selected person is between 145 and 165 cm tall. b) Since the longest 35% will be transferred to

Q: Question 8 The average monthly mortgage payment including principal and interest is $855 in the…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: Question 4…

A: The length of a fully grown hibiscus plant is normally distributed. Mean (μ) = 35cm

Q: Question 4. The standard deviation of the weights of elephants is known to be approximately 15…

A:

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10,  w hat is the…

A: Mean(μ)= 100  standard deviation(σ) = 10

Q: QUESTION 18 The service time for customers coming through a checkout counter has mean 50 seconds and…

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Q: Find the probability that a randomly selected person at the hot springs stays longer then 93…

A: Given Data Population Mean,μ = 68.0 Population Standard Deviation,σ = 18.0

Q: Question 3: Suppose tree diameters of a certain species of tree from some defined forest area are…

A: Given mean, μ = 7 cm Standard deviation, σ = 2 cm X ~ N (μ, σ)

Q: Problem#4: The diameter of the dot produced by a printer is normally distributed with a mean…

A: Let X denote the diameter of the dot produced by a printer is normally distributed with mean…

Q: Question 20: The range of a battery of a newly produced Electric vehicle is normally distributed…

A:

Q: Question 6) The standard deviation value of the products in factory A is 25 g. The weight average of…

A: GivenFor factory An1=sample size of factory A=300x¯1=sample mean of factory A=450 grσ1=population…

Q: The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation…

A: (a)  The probability of a pregnancy lasting 309 days or longer is 0.0038, which is obtained below:…

Q: QUESTION 13 A research worker wants to determine the average time it takes a mechanic to rotate the…

A:

Q: Question 1 The bulk density of pima clay loam follows normal distribution with mean of 1.75 g/cm³…

A: Given Mean(μ)=1.75 g/cm3standard deviation(σ)=0.25  g/cm3

Q: QUESTION 19 The amounts of times that adults sleep are normally distributed with a mean of 6.8 hours…

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Q: a. What is the probability that a laser fails before 6060 hours?  b. If 9 lasers are used in a…

A: The lifetime of a semiconductor laser at a constant gower is normally distributed with a mean of…

Q: An insurance company wants to know if the average speed at which men drive cars is greater than that…

A: Given : For Sample 1 x̄1 = 70.0 s1 = 3.2 n1 = 25 For Sample 2 x̄2 =…

Q: The duration of a lunch break for one employee at a manufacturing company follows a normal…

A:

Q: Question 3. A tower is subjected to horizontal force induced by high winds. In determining the…

A: Given:  The duration T of the wind is  a random variable having a normal distribution with a mean of…

Q: QUESTION 18 The service time for customers coming through a checkout counter has mean 50 seconds and…

A: Let, X=the service time Given that X follows a normal distribution with mean=50 and standard…

Q: QUESTION 1 The service time for customers coming through a checkout counter has mean 128 seconds and…

A:

Q: Question 2 (Chp.7) If the duration of lung cancer from the onset of symptoms until death ranges from…

A:

Q: Problem 1: The average number of acres bumed by forest and range fires in a large New Mexico County…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Problem #2. Suppose that a category of world class runners are known to run a Spartathlon, a…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   Given :…

Q: The amount of syrup that people put on their pancakes is normally distributed with mean 63 mL and…

A: GivenMean(μ)=63standard deviation(σ)=12sample size(n)=43

Q: day is normally distributed with a mean of 16 ounces and a standard deviation of 6 ounces. 32…

A: As per guideline expert have to answer first three subpart only dear student please upload other…

Q: Problem# 4: The diameter of the dot produced by a printer is normally distributed with a mean…

A: Assume, X be the random variable representing the diameter (in inch) of the dot. It is mentioned…

Q: Question 2: The Distribution of the Sample Mean Smartphones are designed to function between 0 and…

A: Given,mean(μ)=3standard deviation(σ)=0.9sample size(n)=36T0=The total temperature

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A:

Q: QUESTION 4 The service time for customers coming through a checkout counter has mean 50.4 seconds…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: Question 4       The time taken by employees at Grace Floral shop to put a bouquet together has a…

A:

Q: Question# 7: A wall clock strikes the bell once at 1 o' clock, 2 times at 2 o' clock, 3 times at 3…

A: Since you have posted multiple questions, we will solve the first question for you. To get the…

Q: QUESTION 10 A research worker wants to determine the average time it takes a mechanic to rotate the…

A: Thank you for posting question As per Guideline I have solve 1st ques . Please answer for 2nd Que re…

Q: Based on a​ poll, among adults who regret getting​ tattoos, 17% say that they were too young when…

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Q: find the probability that the difference between sample proportions is less than 6 percent.

A: Given : p1=0.648 , p2=0.721 , n1=250 , n2=200 Our aim is to find the probability that the difference…

Q: Problem 6 The average travel time (one way) from National University to Robinsons Magnolia is 25…

A:

Q: Question 19: The range of a battery of a newly produced  Electric vehicle is normally distributed…

A:

Q: Chapter 06, Section 6.3, Problem 035 The pucks used by the National Hockey League for ice hockey…

A:

Q: Let X have a normal distribution with μ = 100   and  σ = 20.  Between which two values of X is the…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 100 and…

Q: Find the mean, variance, and standard deviation for the number of sixes that appear when rolling 40…

A:

Q: QUESTION 3 Two classes A and B of 200 students each take the same examination, out of 100 points.…

A: We can find probability using z table.

Q: The length of a fully grown hibiscus plant has a mean 35cm. It is found that 5% of these plants are…

A: i. The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the…

Q: Question 1 In an election, suppose that 60% of voters support a school levy increase. If we poll…

A:

Q: QUESTION 11 The service time for customers coming through a checkout counter has mean 51.4 seconds…

A: We have given that  mu=51.4 ,sigma=6.8 and n=64 Z-score=(x-mu)/sigma X~N(mu , sigma^2)

Q: The length of a fully grown hibiscus plant is normally distributed and has a mean 35cm. It is found…

A:

Q: Question 2 Let the top 4.75% of the student population be of at least height h. What is the…

A:

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10,  w hat is the…

A: Given, μ=100σ=10P(X>105)=?

Q: Question 19 Lucille, Rocio, and Cristina are all taking College Mathematics but from different…

A: we want to find probability for given persons

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.