Suppose people drive an average of 13,000 miles per year with a standard deviation of 2,500 miles per year. What is the probability that a randomly selected sample of 36 drivers will drive, on average, more than 12,750 miles? Also, is there an easier way to find the answer on excel?

Q: 3. We know that heights of U.S. adult females is approximately normal with a mean of about 64 inches…

A: Given that heights of U.S. adult females is approximately normal with a mean of about 64 inches and…

Q: II Conceptual 2. Match the mathematical expression using the numerical answer keys below (Just write…

A: We have to match  exact formula for mentioned terms in question.

Q: Q3- Given 5-cars' data collected for engine size (x₁) and miles per gallon (yi) as shown in the…

A: From the provided information, i xi yi 1 2.0 26 2 2.2 30 3 2.4 23 4 2.5 25 5 3.3 21

Q: Exhibit 12-15 The table below gives social media preferences for random samples of men and women.…

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A: Solution: Given information: k=3 groups  Each group has five observation.  n= 15 total observation…

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A: Followings are the Explanation of the question  ANSWER :- Construct the 99% confidence interval for…

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A:

Q: 3. Determine the constant a so that f(x) is a valid density function. - f(x) = {a(3 — x²), a) 0.3333…

A: Ans#- Given, f(x) is valid density function           f(x) = a(3 - x2)-1 ≤x≤10otherwise…

Q: Use 2 decimal places in your final 3. A new office park is considering to start an express bus…

A: Utility of bus(based on data) = -3.6075 Utility of Automobile (based on data)  = -1.58   Note: Put…

Q: d. Report the slope and intercept of the regression line and explain what they show. If the…

A: Disclaimer: The user has been instructed for completing part d. so, we will work on part d. only in…

Q: Let X be a normal random variable with standard deviation 4.28. If P(56 < X < 78) = 0.9809, what is…

A: Given information: Let X be a normal random variable with standard deviation 4.28. If P(56 &lt; X…

Q: If a normal distribution has mean 2 and standard deviation 3, what is the approximate probability of…

A: The mean is 2 and standard deviation is 3.

Q: 5. True or False a) The correlation coefficient will always be negative when the slope of the line…

A: Given that  Find True or False a) The correlation coefficient will always be negative when the slope…

Q: a) The Determine and time B estimate: Activity A C also estimates. the find to expected 10 6 5 which…

A: Given information:   Activity B C   10 6 5   12 8 10   14 12 12 Mean 12 8.6667 9 S.D…

Q: The sum of the Female category represents the number of _____ surveyed.

A: The table shows the statistical class data.

Q: According to a study of 90 truckers, a trucker drives, on average, 560 miles per day.  If the…

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Q: MCAT in a recent year,scores on the medical college admissions test had a mean of 25 and a standard…

A: From the provided information, Mean (µ) = 25 Standard deviation (σ) = 6

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A: It is given that the data in the tabulation form that represents age (yr) when award was won with…

Q: An experiment is run. The mass of an object is recorded over time. Time (min) Mass (g) 22 49 39 41…

A: Given data: Time (min) Mass (g) 22 49 39 40 41 38 42 36 50 25

Q: 2. Consider the below data set: which one of these employees is in the 30th percentile? Which ones…

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Q: In computing for the mean in letter (c), we used ry = 3, in the formula because we let Y be the…

A: Note: As first three parts are already solved correctly, the answer provided is for True/False…

Q: Find the probability of the indicated event if P(E)=0.40 and P(F)=0.55. Find​ P(E or​ F) if​ P(E…

A: We know the probability of events E and F is;P(E)=0.40P(F)=0.55P(E and F)=0.20

Q: with p.d.f. : The diameter of an electric cable, say X, is assumed to be a continuous random…

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Q: A certain drug manufactured by a company is tested chemically for its toxic nature. Let the event…

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Q: Consider the normal distribution with mean 52 and standard deviation 20. Find the area under the…

A: Given that  Mean = M = 52 , Standard deviation = SD = 20

Q: The table below summarises data collected from male and female children about the time they spent on…

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Q: A random sample of 10 subjects have weights with a standard deviation of 9.4883 kg. What is the…

A: given data   sample size n = 10 standard deviation  s = 9.4883 kg   variance = ?

Q: What can you conclude? show step by step procedure using BOTH p-value and critical region Explain…

A: Given Information: Sample size n=1168 Out of which x=747 use a seatbelt when driving The objective…

Q: Records show that Barangay X has 10,000 voting residents. The Barangay officials intend to conduct a…

A: The total no.of voting residents is,  10000 The no.of residents against the new tax is, 4000 The…

Q: The accompanying data are lengths​ (inches) of bears. Find the percentile corresponding to 61.5 in.…

A: We know the data(x) of lengths(in inches) of bears. 36.0, 37.5, 39.5, 40.0, 41.0, 42.5, 44.0, 45.5,…

Q: Let X be a normal random variable. Which of the following represents the statement "74.37% of all…

A: Answer: From the given data, X is a normal random variable. Given statement is: 74.37% of all the X…

Q: If f (x) = Kēx is pdf in-<<<x<* find the value of K

A: We know the pdf(f(x)) of X,f(x)=Ke-x,    -∞≤x≤∞

Q: QUESTION 8 1. Bowl A contains 3 red chips and 4 blue chips. Two of these 7 chips are selected at…

A: Total =7 3 red and 4 blue 2 randomly selected, put in bowl 2 We have to calculate mentioned…

Q: What is the probability that you select 5 students and 5 faculty? Enter your answer rounded to two…

A:

Q: The female students in an undergraduate engineering core course at ASU self-reported their heights…

A: A frequency (numerical values) is represented graphically by a histogram using bars that are spaced…

Q: A random sample of the price of gasoline from 30 gas stations in a region gives the statistics…

A: From the provided information, Sample size (n) = 30 Mean (ȳ) = $4.49 Standard deviation (s) = $0.26…

Q: Perimeter Shot - A perimeter shot, also known as a mid-range shot, is a jump shot or genera field…

A: From the given information, Piel has to choose four different shooting spots among the five…

Q: ys has a distribution. (2) Two different random variables c

A: * Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts…

Q: What are the mean and standard deviation for this​ distribution?   The mean is   The distribution

A: Given that  n = 10 , p = 85% = 0.85 , q = 1 - p = 1 - 0.85 = 0.15 X ~ Binomial (n = 10 , p = 0.15) p…

Q: QUESTION 2 1. Bowl A contains four red and three white chips, and bowl B contains two red and four…

A: Given: bowl A contains 4 red and 3 white chips bowl B contains 2 red and 4 white chips

Q: The value below are taken from a sample of women and men about their retirement ages. Test at 2.5%…

A: Given Information: Women: Sample size n1=800 Sample mean x¯1=62.7 Sample standard deviation s1=4.5…

Q: proof that for and three events A i B and C defined on the Sample Space s such that P(BIA) <(CIA).…

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Q: respective 2-scores. Which player had the better year relative to their peers, Ron or Rita? (Note:…

A: For males, the mean ERA was 4.979 with standard deviation was 0.914; μ=4.979σ=0.914x=2.97 For…

Q: The area under each chi-square distribution is equal to 1.0.

A: The total area under curve the in each chi-square distribution is always equals to 1.

Q: In an analysis of two attributes, if N = 1000, (A) = 100 and (B) = 300 find the frequencies of the…

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Q: If two Normal universes A and B have the some total frequency but the standard deviation of universe…

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Q: Attempting to improve the quality of services provided to customers, the owner of a chain of…

A: The objective is to validate if the training of the sales personnel is truly effective, i.e., the…

Q: Subjects (530 children with asthma)\ Assignment to blocks is not random Exposed to smoke (285) "Not…

A: Solution: From the given design all the subjects are assigned to two blocks Exposed to smoke and not…

Q: Estimate the daily trip production for a new zone to be developed by selecting the best multiple…

A: In the given situation, The dependent variable is Daily trip production. The independent variables…

Q: B In a distribution exactly normal, 10.03% of the items are under 25 kilogram weitht and 89.97% of…

A: