7. Use R: Suppose the yearly income of people in Minnesota is normally distributed with mean 45,700 and standard deviation 2830. Find the probability that 10 randomly selected people have mean (Xbar) income between 44000 and 48000.

Q: The probability of winning a certain lottery is 1/51,949. For people who play 560 times, find the…

A: Find  E(X)=mean

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A: From z table it can be calculated easily : P(z<1.35) = left tailed  P(z>0.68)= Right tailed

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: given data normal distributionμ = 100σ = 15P(x>Z) = 0.8x = ?

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A:

Q: High School Competency Test A mandatory competency test for high school sophomores has a normal…

A: given data  normal distribution μ = 430σ = 113for top 2% , required minimum score = ?

Q: 1- Consider the following frequency distribution: SOLVE AND SHOW THE STEPS Class Interval 10-under…

A:

Q: For a standard normal distribution, find: P(Z > 2.75) Express the probability as a decimal rounded…

A: given data STANDARD NORMAL DISTRIBUTIONZ~N(0,1)P(z>2.75) = ?

Q: A sample of 200 whatzits is chosen at random from the day's production and it is found that 180 meet…

A:

Q: Total sleep time of college students. The total sleep time per night among college students was…

A: Given mean μ=6.78, standard deviations σ=2.67 n=126

Q: Determine the probability distribution's missing value. The probability that a tutor will see 0, 1,…

A: x P(x) 0 0.3 1 0.26 2 0.16 3 0.09 4 ?

Q: For a standard normal distribution, find: P(Z > c) = 0.6638 Find c rounded to two decimal places.

A: It is given that the Z be a standard normal random variable.

Q: The following contingency table contains a breakdown on rating of the favorite movie from a group of…

A: G PG PG 13 R Total male 10 45 125 320 500 female 15 35 175 375 600 total 25 80 300 705 1100…

Q: K Suppose the following data represent the ratings (on a scale from 1 to 5) for a certain smart…

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Q: An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and…

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Q: Assuming Employee (X) and Output (Y) for Robinson Malls. Some data are given as: Some data are given…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Suppose you flip a fair coin infinitely many times. Let K₁ be the number of times the pattern HT…

A:

Q: c. What is the probability that a ball bearing is above the upper specification limit? (Round to…

A: It is given that  Mean, μ = 0.713 Standard deviation, σ = 0.004 Upper specification limit = 0.73

Q: In the United States, the mean birth weight for boys is 3.41 kg, with a standard deviation of 0.55…

A: The given mean is 3.41, standard deviation is 0.55.

Q: letter doesnt ma

A: Given information: Mean birth weight for boys is 3.41 and standard deviation is 0.55 kg. Let X be…

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A: a) From the given graph, The function is, fx=x29 From the X-axis, the range for X is 0 to 3. Let us…

Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in…

A: n=26, standard deviations s=43.4  Level of significance ɑ=0.02

Q: A standard deck of cards contains 52 cards. One card is selected from the deck 1) compute the…

A: GivenTotal no.of cards in a deck=52

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: given data standard normal distributionZ~N(0,1)for lowest 8% and highest 8%.cutoff scores are ?

Q: Consider the following table: Alternatives c) A3 d) A4 A1 A2 A3 A4 States of Nature S1 320 150 -180…

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Q: A researcher has observed 500 vehicles at a stop sign in a suburban neighbourhood and recorded the…

A: We need to test the Hypothesis for the given data.

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Q: Use the grouped data formulas to find the indicated mean or standard deviation. The speeds of a…

A: Data given Class Frequency 30 - 39 6 40 - 49 15 50 - 59 51 60 - 69 15 70 - 79 13

Q: Measurements of the weights of a random sample of 400 ball bearings made by a certain machine one…

A: Here, mean is 0.87 and standard deviation is 0.018. Sample is 400 We will one sample z confidence…

Q: Source of Variation Sum of Squares Degrees of Freedom Between Treatments Within Treatments. Total…

A: Given, Sample Management  Finance  Accounting Sample size (n) 12 9 11 Mean ( x̄ ) 26 23 25…

Q: Values are uniformly distributed between 171 and 241. *(Round your answers to 3 decimal places, e.g.…

A: Note : As per our guidelines we are supposed to answer only first 3 sub parts for you. "Since you…

Q: After running a linear regression with 1-factor, with the market premium, if beta is negative, then?…

A: A linear regression is performed with 1-factor, with the market premium.

Q: does the condition meet the condition of random and independent sample

A: Random means, In selection of sample from population there is no any specific methode(systematic,…

Q: Parts a, b, and d and explian how it was done. DON'T USE EXCEL, please do the work manually if you…

A: Given The given data is as follows: μ=1.5σ=0.2n=100 X~Nμ=1.5, σ2=0.22

Q: If this experiment is repeated many times, find the mean of the random variable X, the number of…

A: Let S be the sample space  Let p be the probability of getting 2

Q: QUESTION 9 The owner of a coffee shop has found that the average amount spent by 25 customers at the…

A: Given,sample size(n)=25sample mean(x¯)=$6.80population standard…

Q: 14. According to the results of the 2018 Family Income and Expenditure Survey conducted by the…

A: Median of Filipino families=17000 NCR region :  Median=30000 * Clearly we can say , there are more…

Q: The following table shows the distribution of murders by type of weapon for murder cases in a…

A: b) The probability that a randomly selected murder resulted from a rifle is, P(rifle) = 0.026.

Q: Eight White adults had been convicted of crimes of hate for their anti-Asian behaviors and were…

A: Here, eight adults convicted crimes hate which is following in the above table.

Q: On May 16, 2017, Verdun Hayes of Somerset, Great Britain set a new Guinness World Record: the oldest…

A: given data normal distributionμ = 47.8σ = 12.6for top 2.62% of distribution x = ?

Q: 7. Suppose you have a bin of Tennis Balls, 60 are Penn brand and 40 are Wilson brand. You want to…

A:

Q: A sample poll of 150 voters chosen at random from all voters in a given district indicated that 44%…

A: Ans#- Given,  A sample poll n = 150 voters chosen at random from all voters in            a given…

Q: Costs are rising for all kinds of medical care. The mean monthly rent at assisted living facilities…

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Q: In a random sample of 37 ipads brought in for repairs, the average repair cost was $50 with the…

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Q: (a) Computex Compute Compute Ty Compute ² (8) Use the results of part (a) to compute the sample mean…

A: by bartleby policy i can gives only 3 subparts answers at time  From given data we have : x 10 0…

Q: 5. What is the probability that a game sold in that population was NOT a “Family" game?

A: It is given that  P( family game ) = 0.203

Q: let 9₁, 92, Yn reprecent the order statistic Prom Fo(x). Where Fo(Y) is the cumulative funcation Yxx…

A: We have a random sample x1, x2,...,xn of size n. Y1, Y2, ...., Yn represents the order statistics of…

Q: When a quarter is tossed four times, 16 outcomes are possible. HHHH HHHT HHTH HHTT HTHH HTHT HTTH…

A:

Q: You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of…

A: GIVEN DATA x=80,s=4.290% ci for μE=0.7n=?