QUESTION 18 The service time for customers coming through a checkout counter has mean 50 seconds and standard deviation 6.8 seconds. Find the probability that the average service time for 64 passengers to get service will be between 48.4 and 51.6 seconds. 0.1897 0.9699 0.9399 0.0301

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 13 k. Use Poisson's distribution to calculate the A life insurance salesman sells on the…

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Q: The annual rainfall in a city is normally distributed with a mean of 128 cm, and a standard…

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Q: The miles per gallon obtained by the 1995 model Q cars is normally distributed with a mean of 22…

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Q: The probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is…

A: Let, X is the number of houses that were burglarized. X~Binomialn=50,p=0.05

Q: Question 5 A radar unit is used to measure speeds of cars on a motorway. The speeds are normally…

A: The solution to the given question is explained below.

Q: QUESTION 1 A random sample of size n = 64, from a population with standard deviation g=74, is used…

A: Given Information: Sample size (n) = 64 Population standard deviation σ = 7.4 H0:μ=70 against…

Q: Question 4 [25] The amount of time devoted to preparing for a statistics examination by students is…

A:

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: Assume that a human pregnancy has a population mean of 280 days and a population standard deviation…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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

A:

Q: Question 4 (a) At a certain community college, the time that is required by candidates to complete…

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Q: According to Neilson & Co adults watch an average of 30 hours of a TV a week. Assume the population…

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Q: Question 7 If the heights of women are normally distributed with a mean of 64 inches and a standard…

A:

Q: Assume that a human pregnancy has a population mean of 280 days and a population standard deviation…

A: Suppose, X be the number of days human pregnancy stays before giving birth. Given that X follows…

Q: Problem 5 a grocery store's sales experience indicates that its daily apple sales follow a normal…

A: We have given that.   X~N( μ , ?^2 )   μ = 60, ? =15   Z-score =( x - μ )/?

Q: QUESTION 9 Suppose that the average annual revenue of a small business is $150,000 with a standard…

A:

Q: Question [5] The number of calories in a salad on the lunch menu is normally distributed with mean =…

A: Given data,Mean μ=100Variance σ2=16sd σ=4

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Q: QUESTION 3 a) The waiting time at an elevator in a shopping mall is approximately normally…

A: Given that  X~N( μ = 3.2 , ? = 1.5 ) μ = 3.2 , ? = 1.5 Z-score =( x - μ )/? Note: According to…

Q: Question 7 The length of time needed to complete a certain test is normally distributed with mean 52…

A:

Q: receive or send an average of 41.5 text messages per day. A. How many text message users receive or…

A: (A)   If Patients receive 41.5 text messages in 24 hour then Patients will receive 41.524=1.729 text…

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

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Q: college graduates is $25,450. Suppose that that distribution is normal and that the standard…

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Q: Question 6. The downtime per day for a certain computing facility averages 4.0 hours, with a…

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Q: The probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: QUESTION 14 If 8 of 24 remote controls were defective, then the mean of the probability distribution…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

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Q: Question 8 The weight of frogs ih grams in a marsh population are normally distributed with mean (u)…

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Q: Question 4: The time people use their computers before upgrading is normally distributed w years and…

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Q: Question 07 The average number of years a person takes to complete a graduate degree program is 3.…

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Q: Question 4 A manager of Kalundu supermarket claims that the average weight of loaves of bread they…

A: Given: Population mean μ = 400 Sample size n = 50 Sample standard deviation s = 25   Formula Used: Z…

Q: Question 7 The average monthly rainfall in Southern Ontario is 26 mm. If rainfall data over the year…

A:

Q: Questions 8- 9 The waiting time to get a take-out order of food at a fast food restaurant is the…

A: Note: According to Bartleby Expert guidelines, we can answer only first three subparts of a question…

Q: QUESTION 3 a) The waiting time at an elevator in a shopping mall is approximately normally…

A: Given that  X~N( μ = 3.2 , ? = 1.5 ) μ = 3.2 , ? = 1.5 Z-score =( x - μ )/? Note: According to…

Q: QUESTION 19 A new electric car has batteries that can power the car for a certain amount of time. Of…

A: Given,mean(μ)=28standard deviation(σ)=10and the cars operation time is normally distributed

Q: The mean measure of high density lipoprotein (HDL), or good cholesterol, is 54 with a standard…

A: It is given that the mean is 54, the standard deviation is 17 and the sample size is 32.

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

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Q: Question 2 A particular fruit's weights are normally distributed, with a mean of 718 grams and a…

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Q: QUESTION 9 The length of an adult Great White Shark is normally distributed with a mean of 3.4…

A: We have given that.   X~N( μ , ?^2 )   μ =3.4 , ? =0.5   Z-score =( x - μ )/?

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

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Q: QUESTION 14 The average number of cars passing a certain road is 1.8 per minute. Find the…

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Q: Question 8 If X is normally distributed with a mean of 30 and a standard deviation of 2, find P(30 <…

A: GivenMean(μ)=30standard deviation(σ)=2

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.