2. Find the coefficient of correlation between price and sales from the foll data and interpret its valuc through probable error: Price : 103 85 92 90 84 88 90 93 98 95 Sales (units) : 800 500 610 700 630 670 800 750 700 680

Q: Suppose a math class contains 37 students. There are 16 females (six of whom speak Spanish) and 21 m...

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Q: A random sample of size 45 taken from a population of 9000 with u = 18.25 and o? = 81

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Q: One word is randomly selected from the following sentence: THE GRASS NEEDS CUTTING AND SHOULD BE CUT...

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Q: IQ scores are measured with a test designed so that the mean is 113 and the standard deviation is 16...

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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: A die is rolled. Find the probability of the given event. Write your answers as whole numbers or red...

A: a) The outcomes of a fair die is {1, 2, 3, 4, 5, 6}.

Q: 0.0368 to 0.1032 b. Using a 2% significance level, can you conclude that p, is different from p,? Us...

A: Given : Claim : p1 is different from p₂

Q: Which of the following is not equivalent to the statement: If n² is even, then n+2 is even." %3D If ...

A: option B is not equivalent.

Q: Which of the following statements are true? Mark all that apply. Expected Value is the actual gain ...

A: It is needed to select the correct options.

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: In the distribution with u = 35 and o = 6, a score of X = 50 correspond to z =

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Q: Answer the following questions regarding the population of Hamilton County in 2016. If you predict t...

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Q: 7. Find the rank correlation coefficient from the following : 50 50 55 60 65 65 65 60 60 50 Y 11 13 ...

A: We know that  Rank correlation coefficients (rs) rs=​ SSXY/​​√SSXX*SSYY  

Q: Maxine has 3 English books, 4 Math books and 2 Science books.   if Maxine would like the books of ...

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Q: The heights of a large group of women averaged about 64.8 inches, with an SD of about 2.4 inches. Us...

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Q: Dave Fletcher, the general manager of North Carolina Engineering Corporation (NCEC), thinks that his...

A: The Following data is given: Quarter Sales of NCEC Services  Contracts Released 1 8 153 2 10 ...

Q: A desperate statistician believes that using corny stats jokes as pick-up lines will increase the nu...

A: A hypothesis test is an assumption statement about the population parameter. In a hypothesis test, w...

Q: 47. Suppose A and B are two events with P(A) = 0.36, P(B) = 0.48, and the P(A or B) = 0.60. (a) Find...

A:

Q: Steps in Sampling to determine the population of dandelions in your yard?

A: To count the dandelions, we'll first create a grid, then use the computer's random number generator ...

Q: A sample of n = 100 scores is selected from a population with u = 50 and o = 5. If the sample mean i...

A: Given Sample Mean: x̄ = 49 Sample Size: n = 100 Population Mean: μ = 50 Population Std Dev: σ =  5 W...

Q: Disjoint vs. independent. In parts (a) and (b), identify whether the events are disjoint, independen...

A: Given : Three situation :  (a) You and a randomly selected student from your class both earn A’s in ...

Q: Which is relatively better: a score of 70 on a psychology test or a score of 52 on an economics test...

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Q: Refer to Table 1. What is the probability that an undergraduate business major intends to attend cla...

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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: 16. Fit a binomial distribution to the following data : 2 4 3 1 х : 10 4 62 46 28 f

A: Given : x f 0 28 1 62 2 46 3 10 4 4

Q: Suppose a life insurance company sells a $240,000 one-year term life insurance policy to a 20-year-o...

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Q: Find the 80% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate...

A: Confidence Interval:   Let X1,X2,X3, ...Xn  be a random sample from probability density function f(x...

Q: Suppose a life insurance company sells a $210,000 one-year term life insurance policy to a 23-year-o...

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Q: Heights of men on a baseball team have a bell-shaped distribution with a mean of 171 cm and a standa...

A: Given that  Heights of men on basket ball have bell shaped distribution. Mean (μ) = 171 cm Standard ...

Q: D. Lower Limit Upper Limit Frequency Square footage 2 0-499 3 500-999 499 500 999 17 4 1000-1499 100...

A: For the given frequency distribution table Find Sample standard deviation = ? The standard deviation...

Q: A random sample of 27 pairs of observations from a normal population gives a correlation coefficient...

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Q: A vertical line drawn through a normal distribution at z = -1.30 will separate the distribution into...

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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 = ? For the statement given select the correct choice

Q: A test was given to a group of students. The grades and gender are summarized below   If one stude...

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Q: In the probability distribution to the right, the random variable X represents the number of marriag...

A: Farmula used  E(X)=∑xP(X=x) 

Q: The mean square footage is x = 2,415 (Round to the nearest integer as needed.) The standard deviatio...

A:

Q: 25) The following bar chart for these data shows Bar Chart of Number of Cosumers 160 140 120 100 00 ...

A: Marginal distribution displays the column or row total of each categorical level.

Q: Example 134: In a case in Ireland, a class action lawsuit was brought against the government allegin...

A: Sample sizes n1=31      , n2=30        Sample means X̄1=47      , X̄2=43.9       s1=7.2             ...

Q: 1(a). Let F be the event that a person chosen at random is a female and L be the event that a person...

A: Solution: Let F be the event that a  person chosen at random is a female.  L be the event that a per...

Q: In a law office, the average number of billed hours per day was 147 last year. In the first 74 days ...

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Q: The table below is a probability distribution of a discrete random variable X. Find its mean. 1 2 3 ...

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Q: The number of inquiries received per day by the Office of Admissions in a certain university is show...

A: Let X be the number of inquiry received per day by office of admission having probability distributi...

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

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Q: Food trucks have become a common sight on American campuses.  They serve scores of hungry students t...

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per th...

Q: 9. A customer ID consists of 3 digits followed by 2 letters. How many different customer IDs are pos...

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Q: Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons o...

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Q: 14. In the frequency distribution of 100 families given below the number of families icorresponding ...

A: The median (i.e., given as 50) for the provided expenditure groups is given as: Median=l+hfN2-cwhere...

Q: Population Sampling (Quadrat) is usually more effective when the population has an even dispersionCl...

A: Population sampling determines the average per grid segment and determines the population from that....

Q: (a) Verify that this is a discrete probability distribution. This is a discrete probability distribu...

A: For the given data  verify that this is a discrete probability 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