What is the valid N/sample size? What religious category is the mode? What percentage are in this category? What proportion of the sample say they have “No religion”?

Q: above the 75th percentile, then outliers can be found at how many standard deviations above the mean...

A: here use standard normal z distribution table for z score of 75th percentile that is Q3

Q: An educational report asserts that 70% of all young adults start planning their career at the age of...

A: For large samples, the sampling distributions of statistic are normal(Z Test).

Q: A market with 168 operating firms has the following distribution of average number fworkers in vario...

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Q: Calculate the trend values by the method of least squares from the data given below and estimate the...

A: Given The data is as follows Year Sales of TV Sales (in 000) 2006 12 2007 18 2008 20 200...

Q: 9. Castle Rock Entertainment has produced many movies over the past few years. A vice president want...

A: Given that  We have to find  a..The correlation coefficient between cost and the Gross income  b..T...

Q: Suppose the age that children learn to walk is normally distributed with mean 12 months and standard...

A: as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other ...

Q: In a psychology class, 40 students have a mean score of 89.5 on a test. Then 24 more students take t...

A: Given,n1=40 , x¯1=89.5n2=24 , x¯2=78.3

Q: If a pair of (fair) dice are thrown, what is the probability that the sum of the numbers shown is le...

A: Given data isA pair of dice are thrownthen the out comes are(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)(2,1)(2,2)...

Q: The mean weight of 500 male students in a certain college is 151 lbs. and the standard deviation is ...

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Q: Gather two sets of data and use test of difference appropriately (t-test for two sample means or pai...

A: Paired t test : The dependent sample t-test, additionally called the paired sample t-test, could be ...

Q: A researcher conducts a survey examining eating and sleeping behavior as well as academic performanc...

A: The third variable is also known as a confounding variable. These are the variables which the resear...

Q: If X and Y are independent RVs, then E(YIX) - F(Y) nd F(Y10

A: X and Y are independent then joint distribution of X and Y is  f(x,y)=f(x)f(y)   

Q: Given the following, detcrmine the regression equation of (i) x, on x, and .r, (ii) x, on x, and x, ...

A:

Q: 1. Skewness: Describe the shape of the following three distributions & lescribe the relationship to ...

A: Solution: First we understand the relationship between central tendencies measures ( mean,  median  ...

Q: Analyze the following scenarios and FORMULATE A SITUATION where TYPE I and TYPE II errors will be co...

A: Since the population characteristic(s) is being inferred through finite samples, it is highly expect...

Q: 3. Refer to the speed at which cars pass through a checkpoint. Assume the speed are normally distrib...

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Q: Calculate the first four moments about the mean and also the value of B, and B, from the following d...

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Q: An urn contains nine blue balls and five yellow balls. If four balls are selected randomly without b...

A: GivenA urn contains No.of blue balls = 9No.of yellow balls =5Total no.of balls =14

Q: If 8 adults are randomly selected, the probability that exactly 2 of them do not require a vision co...

A: here use binomial distribution Each trial is independent Finite number of trial There are two outco...

Q: Suppose, you are given a straight-line equation, 3x+2y=6 where x and y both of them are integer numb...

A:  ∣y∣<12 means that the values of ∣y∣ can be 11,10,9,8,7,6,5,4,3,2,1 and 0.  Value of |y|  the...

Q: A local county has an unemployment rate of 4.3%. A random sample of 17 employable peop random from t...

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Q: If arithmetic mean and geometric mean of two values are 10 and 8 respectively, find values.

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Q: he arithmetic mean of two observations is 100 and their geometric mean is 60. Find their harmonic me...

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Q: A population has a mean μ=88 and a standard deviation σ=36. Find the mean and standard deviation of ...

A: Given that μ=88  σ = 36 n=81

Q: total of 922 BC residents were randomly selected and asked whether they are planning to do any trave...

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Q: he IIIT-Delhi robotics club has organized a Robothon. n robots are placed along the edge of a circu...

A: Now we can see that the maximum money the club might end up spending is the maximum of the two value...

Q: A high school principal wanted to know  how the teachers at her school felt about early dismissal fo...

A: A high school principal wanted to know  how the teachers at her school felt about early dismissal fo...

Q: If X and Y are independent RVs with f (x) = e U (x) and f,(y) = 3e¯" U ( y), e-3y find f.(z), if Z =...

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Q: A sample of 40 companies belonging to a certain industry reported the following number of employees....

A: Given data is 43        58        21        24        31        49        40        51        55    ...

Q: You are given the following Previous question Cost= 1.5g + 20g• F. = 3.0g + 20, and da Marginal Cost...

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Q: The observed values of a function are respectively 168, 120, 72 and 63 at /the four positions 3, 7, ...

A: To find the best estimate of a functional value corresponding to a particular value of the independe...

Q: 100 North Main Street is the tallest building in Winston- Salem, NC standing at 460ft tall (5520inch...

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Q: Given the bivariate data: 3 5 2 3 2 1 5 Y 6 (a) Fit a regression line of Y on X and thence predict Y...

A: The least square regression line Y on X is given by,   ŷ = bx+a Where  b= {n*∑xy-(∑x)*(∑y)}/{(n*∑x^2...

Q: The amount of pollutants that are found in waterways near large cities is normally distributed with ...

A: As per guidelines expert have to answer first question three subparts only dear student please uploa...

Q: A researcher randomly selected 70 of the nation's middle schools and interviewed all of the teachers...

A: According to the answering guidelines, we can answer only one question at a time and the rest can be...

Q: 2. Those second prize winners missed the first prize by just one number. How much harder is it to wi...

A: Given that, in a lottery game, the first 5 numbers were drawn from 1 to 53 and the Powerball number ...

Q: In a partially destroyed laboratory record of an analysis of correlation data, the following results...

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Q: The data represent the​ time, in​ minutes, spent reading a political blog in a day. Construct a freq...

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Q: x f(x) 20 0.10 25 0.20 30 0.25 35 0.15 40 0.10 45 0.10 50 0.10 compute expected value, variance, an...

A: We want to find mean, variance and standard deviation 

Q: A cigarette company wants to promoe the sales of X's cigarettes (Brand) with special advertising cam...

A:

Q: QUESTION 25 Use the Hypergeometric formula A high school graduation committee is to be formed by cho...

A: GivenTotal no.of students and teachers(N)=11+5=16No.of members to be in committee(n)=8No.of students...

Q: Theorem 3.16. For any three events A, B and C, Р (AnB IC)+ P (AnBIC)- Р (AI C)

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Q: Two balls are selected at random from an urn that contains six black balls and six red balls. What i...

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Q: Example 4. Calculate Coefficient of Correlation from the following results : n= 10, ΣX =100, ΣΥ- 150...

A: We have given that,  n = 10, ΣX = 100 , ΣY = 150, Σ(X-10)2 = 180,  Σ(Y-15)2 = 215 and Σ(X-10)*(Y-15)...

Q: 4. The following are the ages of working students in one of the fast food chains: 18, 20, 21, 18, 20...

A: Given data is 18,20,21,18,20,18,22,24,27,25sample size(n)=10

Q: 3. Set the sample size to n=3 and the number of simulations to Stop: 10. And hit the Run button and ...

A: The sample size represents the number of sample points that are to be taken in one sample while the ...

Q: 1,000 light bulbs with a mean life of 120 days are installed in a new tac- tory. Their length of lif...

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Q: Now, instead, assume you’ve bought all the buses from a single dealership that maintains that these ...

A: A two tail test is used when we want to find significance of mean greater than x and mean less than ...

Q: (ii) If X is uniformly distributed in (0, 1), find g (x), so that the random variable Y = g (X) may ...

A:

Q: Estimate an appropriate measure of dispersion for the following data : Income No. of Persons Less th...

A: Measure of dispersion : Dispersion (also called variability, scatter, or spread) is that the degree ...