Given that X is a normal variable whose distribution has a mean 10 and a standard deviation of 2.5, find the value of P(X > 15). Notes: 1. Write your answer using four decimal places (i.e. 0.2612) 2. Do not express your answer as percentage.

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A: Given, x y 67 44 64 41 75 48 86 51 73 44 73 51

Q: Illustration 15.10. Find the coefficient of correlation between X and Y, 1 2 3 4 5 7 8. Y 12 11 13 1...

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Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately normal...

A: Given  Population mean=μ=810, n=46, standard deviations=σ=68  Z score=Z=(x̄-μ)√n/σ  Note this proba...

Q: The correlation coefficient between the variables x and y is r=0-60. If og=1·50, oy=2.00, E=10 and ỹ...

A: Given,r=0.60σx=1.50  ,  σy=2.00 ,x¯=10    ,   y¯=20

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A: Given: Histogram

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Q: that customer consumes. Round all answers to 4 decimal places where possible. a. What is the distrib...

A: We have given that the amount of calories is normally distributed with mean 2999 and standard deviat...

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Q: Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval...

A: We have given that  Sample size n = 335 Sample proportion p^=53%=0.53

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Q: An average scanned image occupies 0.6 megabytes of memory with a standard deviation of 0.4 megabytes...

A: Note: This probability value calculated from standard normal distribution table

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Q: 2. Let X be a random variable with normal distribution having µ=30.9 and o²=8.41. A random sample of...

A: Let Z be the random variable from normal distribution with mean (μ) = 30.9, variance (σ2) = 8.41 and...

Q: An experiment consists of asking 3 women at random if they wash their dishes with brand X detergent.

A: As per bartleby  guidelines I can't answer more than three sub parts per post. Please post other sub...

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Q: 1. A random variable, X, as moment-generating function M(t) = e, -00 <t< oo. (a) Find E[X]. (b) Find...

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Q: by (i) Laspeyre's Calculate quantity index method, (ii) Paasche's method, and (iii) Fisher's method....

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Q: After completing Assignment : Practice Finding the Z score using Technology, Describe how would use ...

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Q: The following are ages of 19 of the signers of the Declaration of Independence. 37, 30, 35, 43, 44, ...

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Q: A photoconductor film is manufactured at a nominal thickness of 25 mils. The product engineer wishes...

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Q: A bag contains 6 red and 4 white balls. Another bag contains 3 red and 5 white balls. A fair die is ...

A: Here,   P(Red |bag 1)=6/10 P(bag 1) =2/6 P(Red |bag 2)=3/8 P(bag 2) =4/6

Q: A statistical hypothesis test was completed for the following null and alternative hypothesis. A tes...

A: Given : To test : Ho:μ=70    VS     H1:μ≠70 This is two tailed test Calculated test statistic : Z=1....

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Q: Consider the following time series data. 34 : Week 1 2 5 6 Value 18 14 15 12 18 14 Using the average...

A: a) 2.66   b)8.59    c)28.77%   d) 15.17

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Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately normal...

A: Given  Mean=μ=889, standard deviations=σ=53 n=35   

Q: Of all the registered automobiles in Colorado, 8% fail the state emissions test. Twelve automobiles ...

A: Consider, x is a random variable that all registered automobile in Colorado fails the emission test....

Q: In a random sample of 8 ​people, the mean commute time to work was 34.5 minutes and the standard d...

A: Givensample size(n)=8Mean(x)=34.5for standard deviation(σ)=7.4 the 98% confidence interval is (26.7 ...

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Q: ber of sample values. Also, compare the computed standard deviation to the standard deviation obtain...

A: We have given that frequency distribution table.  I want to find standard deviation.   

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Q: Ninety-four percent of Washington community college transfers feel that their community college adeq...

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Q: na study of the accuracy of fast food drive-through orders, Restaurant A had 342 accurate orders and...

A: Given data,No of accurate orders=342No of not accurate orders=74Total orders=416construct a 90% CI f...

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Q: Given the data : Commodities A В Po 1 1 10 5 P1 2 91 where p and q respectively stand for price and ...

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Q: 13. The weights of 7 boys and 13 girls were measured. It was found that the mean wight of the boys w...

A: Given that boys -- n= 7 , mean =58.1 girls --n=13 , mean =62.7 mean weight of whole group =?

Q: A statement is made about correlation. State whether the correlation is positive or negative and whe...

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Q: how many different ways can 15 runners finish in the first five places of a race?

A: It is given that n is 15 and r is 5.

Q: i) If you have twenty ones and fifteen zeroes how many ways can we arrange these digits such that no...

A: Disclaimer : Since you have asked multiple question, we will solve the first question for you. If yo...

Q: Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval...

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Q: 26, 23, 44, 41, 38, 35, 31, 28, 25, 31, 31, 31, 27, 27, 24, 24, 24, 21, 21 Send data to calculator D...

A: Given data are  26,23,44,41,38,35,31,28,25,31,31,31,27,27,24,24,,24,21,21 Now we. Arrange the given ...

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A: It is given that, prior to Covid 19, 8% of online students were found to be academically dishonest.

Q: Consider the hypothesis test Ho : 41 = 42 against H1 : 41 # 42 with known standard deviations o = 11...

A: Given that,           σ1=11σ2=5n1=10n2=15x¯1=4.8x¯2=7.9α=0.05 The Z-test statistics is given by     ...

Q: given its van a 36.8 miles/gallon (MPG) rating. An independent testing firm has been contracted to t...

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