How many 3-digit numbers can we make using the digits 2, 3, 4, 5, and 6 without repetitions?

Q: 2. A line has equation y=r-0.5 a. Pick five distinct x-values, use the equation to compute the corre...

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Q: } Let X. .... X, be a sample from a uniform distribution on [0, 0], where 0 e [1, 2] is an unknown p...

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Q: An internet company conducts a global consumer survey to help multinational companies understand dif...

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Q: Required: 1. Compute a materials price variance for the plates purchased last month and a materials ...

A: Solution: 1)     AP = $28,200 ÷ 12,000 plates = 2.35 Per plate AQ 12000   SP (Given) 2.5   ...

Q: Two rescarchs adopted different sampling techniques while investistigating the same group of student...

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Q: Is there a difference in the amount of panic attacks reported between the groups

A: Let sample 1 for the effects of MDMA use and panic attacks, and  sample 2 for non efects of MDMA use...

Q: The area under the curve of the alpha region of a two-tailed Chi-Square has more area on the left ta...

A: Here use some basic of chi square distribution 

Q: " m klaney transplants, compatibility between donors and receivers depends on such factors as blood ...

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Q: Problem #1( An Electronics firm employs 15 people whose yearly salaries (in hundred thousand of peso...

A: GivenMean(μ)=110standard deviation(σ)=6

Q: Let X1, X2, ., Xn be a random sample from a distribution with mean u and variance o2. Consider the r...

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Q: A gambler has Rs 2/-. He bets Re. 1 at a time and wins Re. 1 with probability 1/2. He stops playing ...

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Q: SmartB” owns a phone battery assembly line which provide phone battery to a mobile company. It is kn...

A: Given,n=28p=0.04A random variable X~Binomial(n=28 , p=0.04)

Q: A pharmaceutical company conducted a study to test the effectiveness of its new anti-depression medi...

A: Given, Pharmaceutical company conducted a study for a new anti-depression medication. 500 adults suf...

Q: If a string, 1 m long, is cut into 2 pieces at a random point along its length, what is the probabil...

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Q: * (i) Let X,, .... X, be a random sample from the distribution with the PDF S(x: 0) = 2.r for 0<x<0....

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Q: The length of time (in seconds) that a user views a page on a Web site before moving to another page...

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Q: ) (i) What is a simple hypothesis? Define the terms size and power for a test of one simple hypothes...

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Q: 4.17 The length of time required by students to complete a one-hour exam is a random variable with a...

A: Given that ;  A probability density function is given. By using the  properties of continues random ...

Q: Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-per-gallon (mpg) than hy...

A: Given that, Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-per-gallon (...

Q: a. Complete the table. b. What is the class interval size (i) c. What is the population (n)

A: Here AS PER POLICY I HAVE CALCULATED 3 subparts kindly REPOST for remaining  Here given grouped freq...

Q: For the sample data 7, 9, 10, 11, 13, 22find the standard deviation (give your answer in three decim...

A: Given data is7,9,10,11,13,22sample size(n)=3

Q: To determine whether or not they have a certain disease, 104 people are to have their blood tested. ...

A: Here for group of 13 people probability that 1 test is required =P(none of 13 have disease) = (1-0.0...

Q: Consider the random variable X that represents the number of people who are hospitalized or died in ...

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Q: 2. A certain number of salesmen were appointed in different territories and the following data were ...

A: Data table: Xi:  frequency (f) 22 4 27 5 32 12 37 23 42 31 47 10 52 8 57 5 62 2

Q: Identify the level of measurement for each variable. Based on your personal experience, form a hypot...

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Q: 7. Draw histogram below using 21-30 as a first class. Then find mode fom histogram. 60 56 56 65 85 4...

A: Solution-: We draw the histogram and find the mode from this histogram?

Q: 3. The daily salary earned by employed at Mesra Company are as follows: Daily salary (cm) Frequency ...

A: Mean of a frequency distribution is the average value. Histogram is a diagrammatic representation of...

Q: The first three moments of a distribution about the value 2 of.the variable are 1, 16 and – 40. Show...

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Q: Match the correct critical values for the t. and chi-square and tolerance interval factor D. X.025.7...

A: t1-a/2,n-1 =&gt;  At n-1=  20-1 =19 degrees of freedom and a/2 = 0.01/2 = 0.005 level of significanc...

Q: V. Find the variance and standard deviation. Show your solution. 1 0.19 P(x) 0.09 0.39 0.22 0.11

A: Let X be the random variable having probability mass function is,  X 0 1 2 3 4 P(X)  0.09 0.19 ...

Q: .You are given the data relating to purchases and sales. Obtain the regression equation by the metho...

A: Given data, X Y X*Y X*X Y*Y 62 112 6944 3844 12544 72 124 8928 5184 15376 98 131 12838 9604...

Q: The distribution of the time to failure of a component is Weibull with B= 2.4 and e = 400 hours and ...

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Q: 3. Normalize the following group of data:13, 18, 25, 45, 55, 60,78, 23 Min-max normalization by sett...

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Q: 4. Given a normal distribution with population u = 35 and population variance o? = 25, find the %3D ...

A: 4. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively. T...

Q: A psychiatrist is interested in finding a 98% confidence interval for the tics per hour exhibited by...

A: Given data is 0,0,6,12,8,11,0,1,9,4,1,8,11,0,6sample size(n)=15confidence interval = 98%

Q: A random sample of 300 individuals working In a large city Indicated that 72 are dissatisfied with t...

A: Given that : Sample size (n) = 300  X = 72 P = x / n  By using the proportion confidence interval fo...

Q: Use the California method in the linear interpolation formula to estimate the 86.81 percentile for t...

A: 86.81th percentile, P86.81= L+h(86.81*n/100-cf.)/f Here L is the lower limit of modal class. h= widt...

Q: (b) Interpret this probability by estimating the percentage of all people whose main satisfaction in...

A: It is given that P(main satisfaction in life from work) = 0.2619

Q: Complete the Table Below Regression Statistics Multiple R R Square Adjusted R Square Standard Error ...

A: Solution: Given information: n= 11 observation  k=1 independent variable  SSR= 68.0  Sum of square o...

Q: 9. Samples of regular intervals. A normally distributed quality char- acteristic is measured and F a...

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Q: As shown in the table, the average number of siblings (sibs) for 1018 middle class adults is 3.15. B...

A: Introduction: It is required to determine if the middle class of the country come from smaller famil...

Q: Chi Square distribution curve il sample size it relatively small is right skewed (longer tails on th...

A: True.  The chi-square distribution curve if sample size is relatively small is right skewed.  

Q: 500 apples are taken at random from a large basket and 50 are found to be had Éstimate the propurtio...

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Q: If X is uniform distributed over (0, 10), calculate that (i) P(X 7) (iii) P(1 < X < 6).

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Q: The sub-group indices of the consumer price index number for urban non-manual employees of an indust...

A: Solution is given:

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The resul...

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Q: The managers of a large company wished to know the percentage of employees who feel "extremely satis...

A: In this case, the manager of the company wants to determine the percentage of employees, who feel “e...

Q: Find the mean of the variables X and Y and correlation coefficient, given the following: Regression ...

A: Solution is given:

Q: Advertisement ($'000)   Sales ($'000) 1068    4489 1026    5611 767      3290 885      4113 115...

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Q: The time to repair of an equipment follows a lognormal distribution with a MTTR of 2 hours and a sha...

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