6. A random sample of 22 lawn mowers was selected, and the motors were tes to see how many miles per gallon of gasoline each one obtained. The standard deviation of the measurements was 1.61. Construct the 95% confidence interv the true variance.

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Q: (a) Ho: µ = 45, x = 65, s = 70, n = 121 t = (b) null value = 100, sample mean = 94, s = 14, sample s...

A: Given: a)  x¯=65 s=70n=121 b) x¯=94s=14n=60

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A: Given that  Mean =40 Standard deviation =5 Range =6  Number of boys=20 The data is symmetrical distr...

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A: Find  Mean=E(X)=expected value=?  Variance=V(X)=?  Farmula used  E(X)=∑XP(X=x)  V(X)=E(X2)-[E(X)]2 ...

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Q: 5.42 Consider a CPP {Z(t),t > 0} with batch size distribution P(Z, = k) = (1- a)*-la, k2 1. Compute ...

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Q: The arithmetic mean and standard deviation of a series of 20 items were calculated by a student as 2...

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Q: A sample of 100 gives the mean weekly wage at $. 50 with a standard deviation of & 10 Another sample...

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Q: To test the intelligence of 10th class boys and girls in a Higher Secondary School, a sample of 83 t...

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Q: X」メ-一Xn ~ECA) find pdf ** メ。 t.

A: The pdf of Xn is

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Q: Find the indicated probability. Round to three decimal places. In a study, 43% of adults questioned ...

A: Given,n=14p=0.43q=1-0.43=0.57Let a random variable X~Binomial(n=14 , p=0.43)P(X=x)=14x0.43x0.5714-x ...

Q: Suppose in one sample hypothesis test, if the test statistic value is -1.09 and the table value is 1...

A: Given  test statistic=-1.09, tabulated=1.96   

Q: Define descriptive statistics

A: Given : Term  Descriptive statistics 

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A: GivenMean(x)=56Varaince(σ2)=5standard deviation(σ)=5=2.2361Median  was greater than mean by

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Q: The values of sample mean X and sample standard deviation s for 15 samples. each of size 4, drawn fr...

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Q: S LO Assume that a procedure yields a binomial distribution with n = 771 trials and the probability ...

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Q: You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.       Ho:μ=82....

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Q: Geometric Probability Nan Lin 1 Warmup problems 1. A six-sided die is rolled, find the probability t...

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Q: ducation for the woman. A simple model relating fertility to years of education is kids = Bo+ Bieduc...

A: *Answer:  Answers   (i) u contains any other factor that affects a woman's decision to have kids ex...

Q: 2. How many different arrangements can be made by using all the letters of the word MATHEMATICS ? 3....

A: Here use combination 

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Q: An investor owns shares in a stock whose present value is 20. She has decided that she must sell her...

A: A group of events will be independent if the probability of occurrence of any one of them is not aff...

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Q: The entire deck of 52 cards is dealt out to 4 players (the Ist player, 2nd player, 3rd player and 4t...

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A: GivenThe regression equation of two variables is3Y-2X-10=02Y-X-50=0

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Q: A. Construct frequency distribution table using data above. Tally Frequenc Class Relative Mark Bound...

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Q: The regression equation of two variables are 3Y-2X 10 = 0 and 2Y-X-500. Find coefficient of correlat...

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Q: Еxample 4 The regression cquation of two variables are 3Y- 2X - 10 0 and 2Y - X - 50 = 0. Find coeff...

A: GivenThe regression equations of two variables areRegression Equation of Y on X = 2Y-X-50=0Regressio...

Q: On a certain test, the average passing score is 72 while the average failing score is 50. If the ave...

A: Given : On a certain test Average passing score = 72 Average failing score = 50 Average for the enti...

Q: The mass of eight apples is 1200g. What is the average mass of one apple in kilograms

A: Given The mass of 8 apples is 1200g

Q: Videotapes. 30 41 28 14 40 36 38 24 61 36 24 45 38 43 32 28 37 34 20 23 34 47 25 31 39 14 43 40 29 2...

A: Given: score result for group that viewed relaxation 30,61,37,39,41,36,34,14,28,24,20,43,14,45,23,40...

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Q: In a series of 5 observations, the values of mean and variance are 4.4 and 8.24. If three observatio...

A: It is given that the mean and standard deviation are 4.4 and 8.24.

Q: ENGINEERING DATA ANALYSIS In a graduating class of 300 students, 162 studied Mathematics, 185 studie...

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Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your...

A: Givenif your claim is in the alternative hypotheis and you fail to reject the null hypothesis 

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A: Given: Population mean Variance Sample size, n 100 40 10 100 30 10 100 20 10

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A: Given: 200 correspondents form the population of grade 11 students N=200 margin of error is 3% e=0.0...

Q: III. The ages of qualified voters in a certain barangay were taken and are shown below Frequency 20 ...

A: Using the given age of voters in terms of the interval, and the frequency distribution for the voter...

Q: To test the intelligence of 10th class boys and girls in a Higher Secondary School, a sample of 83 t...

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Q: QUESTION 1 The table below displayes the number of cars arriving at a fuel station per hour on diffe...

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A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

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