(Use the 68-95-99.7 Rule to solve the problem) The finishing times of a local 5k (3.1 mile) road race follows a normally distribution with a mean of 25 minutes and a standard deviation of 3 minutes. N(25, 3) What percent of finishers do expect to finish outside of 19 and 31 minutes? Enter the value as a percent with one decimal point and no percent sign (e.g. 20.1)

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A: Given n=3 P=70/100=0.7

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A: We know that cohen's d measures the effect size. Here μ is population mean, M is sample mean, s is s...

Q: Test scores: Scores on a statistics exam had a mean of 84 with a standard deviation of 13. Scores on...

A: For statistics exam:mean(x¯)=84standard deviation(σ)=13For calculus  exam :mean(x¯1)=64standard devi...

Q: 4- For the following data. 3 4 27 32 29 36 i- Calculate all the coefficients of the sample autocorre...

A: Given the data as t 1 2 3 4 yt 27 32 29 36

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Q: Suppose that f(x) = e−x for 0 < x. Determine the following: d. P(X < 4) e. P(3 ≤ X) f. x such tha...

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Q: 3 P(A or B) 10 9 find P(A) 10 P(B) 3 1 P(A) = Р (4) : P(B) Р (В) — find P(A and B) = %3D 4 ||

A: The union probability for any two events A and B is defined as P(A ∪ B) = P(A)  + P(B) – P(A ∩ B).

Q: Having more than 1,000 students in a year, assume that I choose a simple random samples of 30 final ...

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Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just ...

A: Formula : Z =(X - μ)/σ

Q: In a shipment of 25 hard disks, six are defective. If five of the disks are selected at random, what...

A: If the event has two outcome then the event follows Bernoulli distribution. If the same event follow...

Q: Events A andB are independent. Find the missing probability. P(A) = (2/3), P(B) = (4/5), P(A and B) ...

A: We have given that,  A and B are two independent events with    P(A)=(2/3) , P(B) = (4/5)  Then,  We...

Q: Lunch break: In a recent survey of 660 working Americans ages 25-34, the average weekly amount spent...

A: Given : Let X be a r.v Mean (μ) = 43.79 Standard deviation (σ) = 3.08    

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A:

Q: Attempting to motivate customers to make early payment of bills, the manager of a consulting company...

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer first three subparts...

Q: Unit 4 – Probability, Random Variables, and Probability Distributions Notes 3 – Discrete and Continu...

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Q: "For each observation, add up the attribute value of all its neighbors (including itself) and divide...

A: Explanation: Getis and Ord (1992) established the Getis-Ord Gi statistic as a local statistic that r...

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Q: Given H = 310, determine the probability of a Type Il error for the following test of hypothesis: Но...

A: Type II error : A type II error could be a applied math phrase employed in hypothesis testing to exp...

Q: (a) Find P(r = 0). (b) Find P(r ≥ 1) by using the complement rule.

A:

Q: 2. Many people have heard of the "Freshmen 20," referring to the belief that many college freshmen w...

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Q: Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The re...

A: For the given data, find the P(A) = ? P(B) = ? P(A') = ? P(A and B) = ?

Q: Out of the numbers 1 to 120, one number is selected at random. What is the probability that it is di...

A: Here use basic probability 

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Q: Each year students in a local school district write a national examination. The average on this nati...

A: Given u Mean = 150, standard deviation = 20 eligible for additional funding: overall average is betw...

Q: Example 39. The first twelve letters of the alphabet are written down at random. What is the probabi...

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Q: Use the figure below to answer the questions that follow. The figure shows the results of a recent M...

A: Given the results of a recent Marist poll asking about President Biden’s approval rating.  

Q: Solve Me Solve the following problems. 1. The mean number of hours a Filipino worker spends on the c...

A: 1)GivenMean(μ)=3.1standard deviation(σ)=0.5z-score(z) = 1.2

Q: Question 1 Consider a 3 dimensional contingency table. Decide if the following statements are true o...

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Q: Problem :A system consists of three units connected in series. The reliability of components are 0.9...

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Q: Suppose, in a car shop, the number of cars sold by a salesman follows a probability distribution wit...

A: Given Suppose, in a car shop, the number of cars sold by a salesman follows a probability distributi...

Q: In a shipment of 25 hard disks, six are defective. If five of the disks are selected at random, what...

A: Given that, in a shipment  if 25 hard disk, 6 were defective. 5 disks are randomly selected .

Q: Which of the following does not belong to the steps in finding the variance of probability distribut...

A: Variance : A applied mathematics measure of the dispersion between values in an exceedingly knowledg...

Q: 1. With economical concerns being so great, many people are no longer purchasing new vehicles, but a...

A: We have given that,  Average or sample mean (x̄) = 6.2, standard deviation (s) = 1.2 and sample size...

Q: Find the z value such that the area under the standard normal distribution curve between 0 and the z...

A: Solution-: Let, Z-be the standard normal random variable We find,  P(0&lt;Z&lt;0.2123)=?

Q: Let X be a random sample of size n from N(41, o?) and let Y be a random sample of size m from N(42,0...

A: determine the distribution of given formulae

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Q: Each year students in a local school district write a national examination. The average on this nati...

A: Given data Mean = 150 Standard deviation=20

Q: Compare two weighing techniques (direct weighing and weighing by difference) and determine if there ...

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Q: Select all of the events that would be considered to be mutually exclusive events. O banana and appl...

A: Solution-: Select all of the given events that would be considered to be mutually exclusive events. ...

Q: A ski company in Vail owns two ski shops, one on the west side and one on the east side of Vail. Ski...

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Q: Find the first four moments about the origin from the following series and convert them into the mom...

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Q: There are 8 players on an amateur basketball team. They are practicing their free throws by having e...

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Q: Consider the following hypothesis test: Ho : u = 18 H1 :u # 18 Using a sample of 48 which provided a...

A: