Calculate the coefficient of correlation from the following data and comment on the result : Experience (X) : 16 Preformance (Y): 23 12 22 18 24 4 17 10 20 5 18 12 21 19

Q: Question 1: The amount of time until an accident occurs at an industrial facility follows an exponen...

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Q: Find the probability (in fraction form) for each given situation. A single die is rolled. What is th...

A: We have given that  A Single dice is rolled . Total number of sample space  S= { 1, 2,3,4,5,6} Numbe...

Q: Use the data to the right to complete parts (a) through (d) below. Percentage Who Won't Try Don't Ap...

A: Given that; A data set is here  By using the formula of correlation coefficient (r)and regression co...

Q: Question: IQ scores are measured from 30 children who participated in Head Start and from 32 otherwi...

A: Given: n = 30 Mean of the Head start group is 103 Mean of the No Head Start group is 95

Q: Two stores sell watermelons. At the first store the melons weigh an average of 22 pounds, with a sta...

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Q: What is the best correlational test to use in SPSS for a research sample size of 39?

A: A correlation coefficient is a value that shows how closely two sets of measurements are related. It...

Q: Find the mean of the set of data below and construct a sampling distribution, without replacement an...

A: a)

Q: 1. Following data consisting missing observation (X) Commodities Po P1 А 1 10 2 В 1 5 where p and q ...

A: Solution is given:

Q: The seedlings of a particular type of tree are randomly dispersed in a large area, with an average o...

A: Here we have given that λ = 6 We will use Poisson distribution to find the probability

Q: Follow -up Questions: 1. What will happen to the sample size if the percentage error becomes lower e...

A: What will happen to the sample size if the percentage error becomes lower e.g. 5% instead of 10%?

Q: A die is rolled twice. What is the probability of showing a 3 on the first roll and an even number o...

A: if we roll a die twice than the possible outcomes are1,11,21,31,41,51,62,12,2(2,3)2,42,52,63,13,23,3...

Q: Calculate pearson's Coefficient of correlation :

A: Here use Pearson's correlation coefficient 

Q: End-of-Chapter Problems: Chapter 05 z-Scores: Location of Scores and Standardized Distributions For ...

A: Givenx=85Mean(μ)=75standard deviation(σ)=15

Q: X~Btald, NOTE Notation Beta(a, B) Parameters a > 0 shape (real) B>0 shape (real) x E [0, 1]or x E (0...

A: Given that; X follows a beta distribution By using beta distribution find the mean and variance of b...

Q: Question: IQ scores are measured from 30 children who participated in Head Start and from 32 otherwi...

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Q: In a certain country, the true probability of a baby being a boy is 0.522. Among the next nine rando...

A: When the same random experiment is repeated a number of times, it's called repeated trials. The outc...

Q: If f(x) is a pdf, then f(x) can take any value in R (i.e., f(x) can be any real number). O True Fals...

A: We have given that the statement about to the probability density function (pdf) f(x). 

Q: The following table gives indices of industrial production of registered Calculate the value of the ...

A: The correlation coefficient is used to measure the linear association between two variables. The cor...

Q: Construct the confidence interval for the population mean u. c=0.95, x = 15.7, o = 7.0, and n= 75 A ...

A:   Given problem Given that   c = 0.95 x̄ = 15.7 σ = 7.0 n = 75  

Q: In an experiment, college students were given either four quarters or a $1 bill and they could eithe...

A:

Q: 4. N = 15,000 and e = 14% %3D 5. N= 22,000 and e = 2% %3D

A: Here use slovin's formula  

Q: a. If A and B are independent, and A and B are independent, show that A and B are also independent.

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Q: B. Complete the frequecy distribution table and find the measures of dispersion Class Interval Frequ...

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Q: 14. Event A and Event B are dependent. 21 a) P(B)=-; p(A and B) = 00i ; P(B|A) = b) P(B|A) =; P(A an...

A: Given that  a)  P(B)=7/10 , P(A and B)=21/200  Find P(B/A)= ? b)  P(B/A)=7/40 , P(A and B)=7/200 Fin...

Q: 14. Direct Mail A survey shows that 51% of adults prefer to receive advertisements through the mail....

A: Given percent of adults prefer to receive advertisements through the mail=51%Margin of error(E)=5.2%

Q: Illustration 12.25 Trend equation for yearly sales (in '000 R$) for a commodity with year 1979 as or...

A:

Q: 17. The following values of the function f(x) = sin x + cos x, are given 10° 20° 30° flx) 1.1585 1.2...

A: Solution is given:

Q: Example 10. From the following data, estimate the number of persons earning weekly wages between 60 ...

A:  

Q: Each word must begin with the letter A. There are  ?  possible "words". (d) The letter C must be at...

A: 4 -letter "words" are formed using the letters A, B, C, D, E, F, G.  

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated th...

A:

Q: . If Z is a standard normal random variable find the following probabilities (Use Standard Normal Ta...

A: Solution: Let Z be the standard normal variable with mean 0 and standard deviation 1.  Z~N(0, 1)  

Q: Use the Venn Diagram to determine the following probabilities.

A: Here AS PER POLICY I HAVE CALCULATED 3 subparts kindly REPOST for remaining Here  There are total 80...

Q: percentages of teehagers In varous Counties that hav certain drugs. Complete parts (a) through (c) b...

A: Given data, X Y X*Y X*X Y*Y 23 4 92 529 16 17 3 51 289 9 40 20 800 1600 400 5 1 5 25 1 ...

Q: A car hire firm has two cars, which it hires out day by day. The number.of demands for a car on each...

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Q: You are interested in testing whether the average age of household heads is higher in the suburbs th...

A: From the provided information,

Q: ara draws the 6 of hearts from a standard deck of 52 cards. Without replacing the first card, she th...

A: There are 52 cards in a deck. If two cards are drawn without replacement then the number of ways fir...

Q: ladders used by  fruit pickers are typically tapered with a wide bottom for stability and a narrow t...

A: Given: an = 19, d = -2.5, a1 = 49

Q: Example 15. Construct a continuous frequency distribution table (inclusive type) of the following ma...

A:

Q: 4. What is the probability that 60 mRNA transcripts are made until the 4th burst?

A: here  p= probability of burst in gene expression = 0.065  

Q: Standard automobile license plates in a country display 2 numbers, followed by 3 letters, followed b...

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Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: The following are the monthly figures of advertising expenditure and sales of a firm. It is generall...

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Q: find the values of p and q.

A: HERE GIVEN, discrete probability distribution of x and E(X) = 4

Q: NOTE: ANSWER E TO J ONLY. PLEASE DONT SOLVE ON EXCEL THANK YOU

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...

Q: 10. Mingming, Mark's cat, recently got pregnant and is expecting 6 cubs according on her doctor. Mar...

A: Here p- value = 0.056  Level of significance = 4% = 0.04 As p-value > 0.04, hence we accept null ...

Q: The seedlings of a particular type of tree are randomly dispersed in a large area, with an average o...

A: Poison distribution used only, If a problem contains the average value for happening of an event per...

Q: Question 2 of 8 The following probability mass function is for the random variable X What is the val...

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Q: Each spinner is spun once. Find the probability of each (Note that there are repetitions): parts 1 4...

A: Consider the two spinners are spun independently. a) P(A and 1): PA and 1=PA×P1                    =...

Q: Find the standard deviation of the following distribution : Age No. of persons : 20-25 25-30 110 30-...

A:                                                         INTRODUCTION

Q: Find what is asked. 1. Find the area under the standard normal curve that lies to the left of: z = -...

A: As per our guidelines we are suppose to answeer only three subparts1)a)GivenThe area under the stand...