Use the following Box-and-Whisker Plot to answer Questions 21 and 22. 6th Grade Math Test + + 60 65 70 75 80 85 90 95 100 Test Score 21) Approximately how many test scores are above 78? 2) What is the median score?

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A: We have given that  Sample size n =90 Population proportion p=23%=0.23  

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Q: What is the standard error of the 95% confidence interval for the average jump increase?

A: HERE GIVEN, n= 52 sample mean = 2.44 inch S = sample standard deviation = 1.34

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Q: Marks in an examination are approximately normally distributed with mean 75 and standard deviation 5...

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Q: Rachel's null hypothesis is that the average calories in frozen Mac n Cheese is 350 (that is, the po...

A: Here Rachels Null Hypothesis is that the average calories in frozen Mac n Cheese is 350.

Q: I. Answer each of the following using the Empirical Rule for Normal Distributions An IQ test is norm...

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Q: Which is the best investment company to invest in: Investment Company A Possible Return 55 pesos 45 ...

A:   E(X)= ΣXi*P(Xi)  And E(X2)= ΣXi2P(Xi) Variance= E(X2)- (E(X))2 For company A,  Variance= (55^2*0.5...

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Q: Find the cumulant generating function of gamma distribution and obtain various cumulants.

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Q: Find the number of possibilities. A team of ten basketball players needs to select a captain and a c...

A: Given that, A team of 10 basketball players needs to select a captain and co-captain. We need to fin...

Q: * If the CV of A ==11.18% , CV of B= 14.09

A: It is given that Coefficient of variation of A = 11.18% Coefficient of variation of B = 14.09%

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Q: A continuous random variable X has the density function given f(x)= A.e 6. Find the value of A and a...

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Q: Using the Z table provided, find the value of a. P[-a < Z < a] = 0.9954

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Q: the Z table provided, find the value of ?. P[

A: If we have z table than we can get easily the probability of z value There are three steps. 

Q: 3 Question Samples according the object selection method can be divided to : 1. Random and non rando...

A:   Given problem Given that   Samples according the object selection method can be divided to : Ans) ...

Q: 13. Given the following information. 2004 Соmmodiry Price 2005 Оиаntity Quant:iy A 10 Price 49 50 B ...

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Q: Question: 65 kids was surveyed, and it was found that each of the kids surveyed liked at least one o...

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Q: Find the chance of throwing head or tail alter- natively in 3 successive tossings of a coin ?

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Q: Calculate the arithmetic mean from the following Cata : Value Frequency 0-4 328 5-9 350 10-19 720 20...

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Q: What percentage of the population has an IQ that is above average (higher than the mean)?

A: Here Given   scores are approximately normally distributed with a mean of 100 and a standard deviati...

Q: records of 100 of per past students over a three-ye= for analysis. Exhibit 1 below shows the results...

A: Given, population mean (µ) = 85 sample mean (x̄)  = 75.4 population standard deviation (σ) = 15 samp...

Q: Find the moment generating function of the random variable whose moments are u H = (r+1)! 2"

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Q: 1. According to statista.com, workers in Brazil lead the world in paid vacation days, averaging 41 d...

A: Given : Sample No. Sample 1 48 2 40 3 30 4 58 5 20 6 40 7 55 8 70 9 20 10 41 ...

Q: 5.47 Ambulance response time. Ambulance response time is measured as the time (in minutes) between t...

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Q: 23. The continuous distribution of a variate X is defined by 0<x<1 f(x)= {(3-x), 2sxs3 Find the mean...

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Q: All human blood can be typed as one of O, A, B, or AB. The table below shows the probability of a pe...

A: Probability of an event gives the chances of occurrence for the event. The value of probability is c...

Q: 27. Discuss the effect of change of origin and scale on the moment generating function.

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Q: With milk sales sagging of late, The Milk Processor Education Program (MPEP) decided to move on from...

A: In this question  given that  data on the number of gallons of milk households consumed weekly (in m...

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A: Given :  

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A: We have given that the random variable X that is to like the bread is follow Binomial distribution w...

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A: Given: Age of husband x Age of wife y 23 18 27 22 28 23 29 24 30 25 31 26 33 28 ...

Q: of 100 observations 0.49 -012Y,+0,54AY,. the numbers in parentheses are standard erors and where the...

A: Unit root tests are tests for determining the stationarity property in the model of time series. Uni...

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A: The cumulative distribution function or simply distribution function of a random variable X is defin...

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Q: A researcher is exploring the relationship of academic performance of students in an online class to...

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Q: The mean weight of 150 students in a class is 60 kg. The mean weight of boys in the class is 70 kg. ...

A: Let  x̄1 be the mean of Boys  x̄2 be the mean of girls  n1 be the number boys in the class  n2 be th...

Q: Variety 1 2 3 4 5 6 A 35.3 31.0 32.7 36.8 37.2 33.1 B 30.7 32.2 31.4 31.7 35.0 32.7 C 38.2 33.4 33.6...

A: Obtain the value of test statistic F value for the treatment.   Use EXCEL Procedure to obtain the va...

Q: Suppose that a report indicates that 28% of Canadian homeowners have experienced difficulty in makin...

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Q: 3. A linear regression model prediction is in the form of y = 2.18 x1-4.56x2, The root mean square o...

A: Given : A linear regression model prediction is in the form of y = 2.18 x1 - 4.56 x2. The root mean ...

Q: * o/X*100 is Coefficient of variation O Combined Standard Deviation O

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Q: A new sneaker claims that it can make male athletes jump higher. A sample of 36 male athletes were a...

A: It is known that,  Sample size is n= 36  Mean = 2 inches. And sample standard deviation, s= 1.3  

Q: The marks scored by 60 students in an examina- tioń in statistics are given below. Frame class inter...

A: For the given data Frame class intervals of ten and mean =?

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A: (a) The objective is to complete the table: Let us first start with the ANOVA table. Mean sum of squ...

Q: Calculate the arithmetic mean from the following đata : Тетр. "С" No. of days -40 to-30 -30 to -20 -...

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Q: There are hundreds of apples on the trees, so you randomly choose just 44 apples and get a mean weig...

A: We have given that,  Sample mean (x̄) = 85.12, standard deviation (s) = 6.86, sample size (n) = 44 a...

Q: Sources of Variation Degrees of Freedom Sum of Squares Between 4 200 Within 40 3547 Suppose the samp...

A: Farmula used  dfwithin=N-k dfbetweem=k-1