Find out median from the following : Mid-Value Frequency 2.5 1 7.5 12.5 3 17.5 4 22.5 27.5 6 32.5 4 37.5 42.5 3.

Q: Let X ~ B(n,p). Show that the moment generating function m(t) of X is (pet + q)n where q = 1-p. Now ...

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Q: Answer the following questions regarding the population of Hamilton County in 2003. If you predict t...

A: The population of year 2000, 2009 and 2015 is given in thousands as: Year Population  2000 844 ...

Q: 1. According to the records of an auto insurance company, the average distance that their customers ...

A: Introduction: Denote μ as the true average distance that customers of the auto insurance company dri...

Q: WRITE P IF PERMUTATION, WRITE C IF COMBINATION, WRITE FC IF FUNDAMENTAL COUNTING PRINCIPLE   1. Ma...

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Q: Increasing the standard deviation will increase the precision of estimation of the confidence interv...

A: Given: on increasing the standard deviations of confidence interval by keeping sample size amd level...

Q: Which of the following are specified by the central limit theorem? (Select all that apply.)

A: Which of the following are specified by the central limit theorem? (Select all that apply.)   the me...

Q: Let X, Y ~ U[a, b] be independent. Define Z = max{X, Y}. Find the cdf of Z.

A: Let X, Y ~ U[a, b] be independent.

Q: The average production cost for major movies is 57 million dollars and the standard deviation is 18 ...

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Q: The 2008 General Social Survey asked, “What do you think is the ideal number of children for a famil...

A: We have given that  Sample size n =678 Sample mean =3.22 Standard deviation =1.99

Q: 11. A consumers group recently tested 100 compact fluorescent light bulbs and recorded their lifetim...

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Q: The total costs for a company are given by C(x) = 5400 + 20x + x2 and the total revenues are given ...

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Q: monty has a collection of 50 pairs of shoes consisting of 18 nike, 20 jordan, 9 adidas, ans 3 reebok...

A: Given:  50 pairs of shoes consist  18 Nike ,20 Jordan, 9 Adidas , 3 Reebok shoes , p=9/50= 0.18   

Q: You are given the sample mean and the population standard deviation. Use this information convenient...

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Q: A quiz contains 4 multiple-choice questions. Each question has one correct answer to choose from 4 p...

A: Given:  Quiz contain 4 multiple choice questions each question with 4 option inwgich only one is cor...

Q: Problem : A system has 100 units in series, each having a reliability of 0.98. What is the reliabili...

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Q: B. Find the mean, variance, and standard deviation of a discrete random variable X that follows a bi...

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Q: In quantitative research, the main difference between surveys and correlational research is ?   A. C...

A: Surveys and correlation research are research methods.

Q: Based on the given scatter diagram, choose the correct statement. a. It is a positive correlation. ...

A: Scatterplot is a graphical representation between two variables, where each of the points of the plo...

Q: The third quartile Q, is (Type an integer or a decimal.)

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Q: Find the standard deviation, s, of sample data summarized in the frequency distribution table below ...

A: For the given data Standard deviation = ? Select the correct option

Q: A plant biologist conducted an experiment to compare the yields of 4 varieties of peanuts (A, B, C, ...

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Q: If you randomly select a card from a well-shuffled standard deck of 52 cards, determine the probabil...

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Q: What do you mean by a normal curve (normal distribution) ?

A: Given : Normal curve (Normal distribution)  

Q: It is known that 60% of customers will need additional maintenance on their vehicle when coming in f...

A: We have given that  Sample size n =50 Sample proportion p^=60%=0.60

Q: Hours of Sleep Depressed patients 7.1 Normal controls 8.2 6.8 7.5 6.7 7.7 7.3 7.8 7.5 8.0 6.2 7.4 6....

A: Given: Depressed patients Normal Controls 7.1 8.2 6.8 7.5 6.7 7.7 7.3 7.8 7.5 8 6.2 ...

Q: Calculate a 95% confidence interval (show your work) for the population mean of total cholesterol le...

A: It is given that Sample size n = 30 Sample mean M = 5.20 Sample SD s = 1.3 The critical value of t a...

Q: A stratified sample of nurses from different wards at St. Peter Hospital revealed the number of burn...

A: In this problem our response variable(y) is the the burnout level as measured by the the Maslach bur...

Q: The University is considering changing the email system that they currently use. Since there are sub...

A: Formula   Test statistic

Q: Refer to Table 1. Given a student was an undergraduate bus what is the probability that the student ...

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Q: 51. The Pew Research Center finds that the demographic make-up of political parties is changing dras...

A: Formula : For independent event,  P(A|B) = P(A) 

Q: Waiting times (in minutes) of customers at a bank where all customers enter a single waiting line an...

A: Given data isBank A :-6.4,6.7,6.7,6.8,7.1,7.3,7.3,7.6,7.7,7.7Bank B:-4.3,5.3,5.9,6.3,6.7,7.6,7.8,8.5...

Q: Find the third quartile Q, of the list of 24 sorted values shown below. 31 32 38 40 41 43 45 45 46 4...

A: We have given that,  The data set is,  31,32,38,40,41,43,45,45,46,49,52,53,55,55,57,57,57,57,61,63,6...

Q: Derive the following; show complete solutions. with parameter (r, λ) a. MGF of Gamma Distribution b....

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Q: O Points: 0 of 1 Save A researcher wishes to estimate, with 90% confidence, the population proportio...

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Q: draw one card from a well-shuffled deck of cards. you win $1 if you draw a heart, $5 if you draw an ...

A: Given: x (amount won) Event 0 any other card 1 heart 5 ace 10 king of spade Total num...

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.38%. A random sample of 32 of thes...

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Q: Derive the joint density function for U1 and U2. Show that the marginal distribution of Uj is a beta...

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Q: The PTO is selling raffle tickets to raise money for classroom supplies. A raffle ticket costs $5. T...

A: For the given The PTO is selling raffle tickets to raise money for classroom supplies. A raffle tick...

Q: Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 a...

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Q: swer this one instead. A nationwide study of American homeowners revealed that 64% have one or more...

A: Given: Sample size (n) = 490 Number of success (x) = 360 Sample proportion p^=360490=3649 Hypothesiz...

Q: 16. Fit a binomial distribution to the following data : 4 3 1 х : 10 4 62 46 28 f :

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Q: 1. An extremely important concept in queueing models isthe difference between rates and times. If l ...

A:  Queuing model is made to determine the waiting time and the length of the queue. It helps in the pr...

Q: A random variable X has a pdf   f(x) = { kex, x<0             0   , otherwise }   Determine the val...

A: K=? V(X)=? 

Q: Below are 36 sorted ages of an acting award winner. Find the percentile corresponding to age 66 usin...

A: From the information, Total no.of data values = 36 The formula for calculating the percentile of X i...

Q: The mean height of women in a country (ages 20 - 29) is 64.3 inches. A random sample of 60 wormen in...

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Q: Q.8. Find Median, lower and upper quartiles, Decile (7th) percenlite from the following data 60th. S...

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Q: Find the standard deviation, s, of sample data summarized in the frequency distribution table below ...

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Q: Find the standard deviation, s, of sample data summarized in the frequency distribution table below ...

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Q: sample of size 110 is selected from a population with p = 0.40. a) What is the expected value of p? ...

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Q: 3. Find the variance and Standard Deviation of the given data obtained from the test of 56 students....

A: Ans#- Find Sample Variance (s2) Sample Standard deviation (s) from the following grouped data Sco...