A student club lists as its members 2 Canadians, 3 Japanese, 5 Italians, and 2 Germans. If a committee of 4 is selected at random, find the probability that (a) all nationalities are represented; (b) all nationalities except Italian are represented.

Q: If a (b,v,r,k,lambda) design is symmetric with lambda=1, then there exists an integer n such that…

A: Using projection property in BIBD.  We know that, Symmetric 2-designs with λ = 1 and order n > 1.…

Q: Here is a bivariate data set. x y 40.4 50.5 23.4 27.4 26.5 93.3 42.9 -16.6 29.5 4 49.8 -11.8 43.6…

A: Data given  X:40.4,23.4,26.5,42.9,29.5,49.8,43.6,23.8,40.1,35.7,12.5,31.6,52,36.6…

Q: Based on this confidence interval, would you reject the null hypothesis or fail to reject the null…

A: here n =100 95% confidence Interval for difference  [$1769 , $4195]

Q: You measure 33 dogs' weights, and find they have a mean weight of 55 ounces. Assume the population…

A: It is given that Sample size n = 33 Sample mean M = 55 Population SD = 14 The critical value of Z at…

Q: 1. It gives a bell shaped curve when the data are plotted on a graph paper.

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Q: a. Define the parameter of interest to the environmentalists. b. Use the data to find a point…

A: Given that,   Sample size = 76 captured turtles length Let 'X' be the random variable represents the…

Q: 52 30 44 350 47 37 56 26 30 44 37 37 Click the icon to view the table of critical correlation…

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Q: Researchers were interested in the number of outdoor walks a week that people had taken during the…

A: There are 3 independent samples which are Midtown Toronto, Markam and Maple. We have to test whether…

Q: Classify as Discrete or Continuous The number of hours children Choose.. watch television The time…

A: Given that  We have to classify whether the data  is discrete or continuous :    The number of hours…

Q: goog 1. P(M) 2. P(F) 3. P(L)

A: Given that    Long hair = L Short hair = S Male = M 3 7 Female = F 36 4 Note: According to…

Q: second 9 has the same mean and standard deviation, what are the mean and standard deviation of his…

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Q: You measure 42 randomly selected textbooks' weights, and find they have a mean weight of 41 ounces.…

A: Given problem Given that   x̄ = 41 σ = 4.4 N = 42 As we know, P( -1.96 < z < 1.96 ) = 0.95…

Q: A study on four-year colleges in the United States found that the freshmen retention rate is 80% and…

A: The objective is to set up the appropriate claim to test the hypothesis that, at CMS, the retention…

Q: firm is studying the delivery times of two raw material suppliers. The firm is basically satisfied…

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Q: Example 8. A company has two plants, A & B, each designed for manufacturing 10 biscuit packet and 15…

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Q: MO21. An Article in the Journal of Sports Science (1987, Vol. 5, pp. 261-271) presents the results…

A: The random variable hemoglobin level follows normal distribution. We have to construct the 95%…

Q: Instruction: Write True in the blank if the statement is correct but if False, underline what makes…

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Q: A die is weighted such that an even number is twice as likely to come out as an odd number. If the…

A: The mean or expectation of a discrete random variable X is a measure of central tendency of the…

Q: A random sample of 2000 driver's license applications found that 17% reported their eye color as…

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Q: For a fully discrete 2-year term life insurance on (50), you are given: a. Cash flows are annual. b.…

A: Given Insurance type  : a fully discrete 2-year term life insurance Age : 50 years Annual gross…

Q: a. Accurately sketch and shade the area under the standard normal curve that lies between z-1.25 and…

A: Question (a) Let Z be the random variable from standard normal distribution with mean = 0 and…

Q: The following table gives the profits of a concern for 5 years ending 1983 : Year : 1998 1997 40.2…

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Q: Let X be the distance in kilometers that a tyre travels before being replaced. Historical data…

A: Given  Mean μ=60,000, Coefficient of variation=Cv=0.25  X=67680

Q: 40 grams. If you pick 14 fruit at random, what is the probability that their mean weight will be…

A: Population mean μ=526, standard deviations σ=40, n=sample size=14, P(490<x̄<494)=? Note: This…

Q: For the following data (72, 65, 76, 78, 40, 77, 58, 77, 65, 77, 65, 75, 66) (1) construct a stem and…

A: The given data is  72, 65, 76, 78, 40, 77, 58, 77, 65, 77, 65, 75, 66 Stem and leaf plot

Q: How many numbers consisting of five different digits can be made from the digits (0, 1 , 2, 3, 4, 5,…

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Q: Example 11. Three type of shaping tools are produced I, Activity II and Activity III. The duration…

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Q: 4. Find out Spearman's Rank correlation for the following data and write your comment. Profits 65 54…

A: We have given that, The data set are:- X:- 65, 54, 46, 54, 38, 85, 46, 70, 68, 95 Y:- 55, 35, 40,…

Q: Find the sample size required to make a 95% confidence interval estimate of the mean length of the…

A: GivenMargin of error(E)=0.6standard deviation(σ)=3confidence interval=95%

Q: Assume that the sales of Teri’s Specialty Cakes has historically followed a normal distribution,…

A: Given that mu = 250 ,s.d =15

Q: The scatterplot shows the actual weight and desired weight change of some students. Thus, if they…

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

Q: A teacher collects the following data from 5 college students regarding the number of times they…

A: Given Information: Population mean is 4.0 Sample data: 6,5, 7, 6, 4  The objective is to test…

Q: Researchers believe that students who study from a screen (e.g., phone, computer) have different…

A: Given: Sample mean, X¯=72.5μ=77σ=8α=0.05

Q: 3. Number of seeds counted for di-hybrid test cross Expected ratio Deviation (O- Deviation (d) E)…

A: The categorical variable is number of seeds. We have to test whether the distribution of proportions…

Q: The following table gives the profits of a concern for 5 years ending 1983 : Year : 1994 1995 1996…

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Q: magine that you first estimate an OLS regression with a random sample of 100 observations and then…

A: The standard error is inversely proportional to the sample size. Hence, if the sample size increases…

Q: A random sample of nine students was selected to test for the effectiveness of a special course…

A: For the given data Find confidence interval for the mean mud

Q: The team meeting will be held in 3 days from the date of the assignment and because of the…

A: Please note that as per our guidelines if multiple questions are posted we can answer the first one.…

Q: According to an article in Bloomberg Businessweek, New York City's most recent adult smoking rate is…

A: The random variable smoking rate follows normal distribution. We have to test whether the rate…

Q: 3. Do the following for the case below. a. State the null and alternative hypotheses for a…

A: A hypothesis is an assumption that can be tested to see if it is true or not.

Q: Answer the following problems. 1. A basket contains 10 ripe and 4 unripe mangoes. If three mangoes…

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…

Q: 1. A consulting agency was asked by a large insurance company to investigate whether salespersons…

A: Given  n1=sample size 1 =40, n2=sample size 2=45, sample mean 1 x̄1=11, sample mean x̄2=9, s1=sample…

Q: As a senior high school student, how much time do you spent in studying and answering the activities…

A: The following information has been given: The population mean is μ=25. The population standard…

Q: A biologist looked at the relationship between number of seeds a plant produces and the percent of…

A: F )  X-Seeds produced Y-Sprout percent

Q: Compute the expected return and risk of stocks A and B а.

A: The given table is Month  1 2 3 Total A(%) 2 1 4 7 B(%) 9 6 5 20 Total 11 7 9 27…

Q: numbers (a, b, and c) are your assigned figures. Data: Units Cost 85 200 70 185 64 150 28 35 50 56…

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Q: Examine the relationship between the age and price for used cars sold last year by Honda. Car Price…

A: Introduction: The age of the used car would influence the price for which it was sold. Thus, car age…

Q: MO22. Supercavitation is a propulsion technology for undersea vehicles that can greatly increase…

A: Given that   x̄ = 102.2 ,  μ = 100 , ? = 4 , n = 8

Q: Very few testing procedures are absolutely perfect. This has become particularly apparent with the…

A: Let C be the event that someone has COVID-19 and  Cc is the event that someone does not have…

Q: From the following observed distribution, find the binomial distribution for the given data assuming…

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