Directions: In a contest for Singing, two judges gave their ratings to 6 contestants. Convert the ratings to ranks and compute the coefficient of rank correlation. Candidate Judge 1 Judge 2 Rank (Judge 1) Rank (Judge 2) Solar 85 89 Lia 89 88 Rose 83 86 Jihyo Wendy Ningning 94 93 88 90 87 85

Q: A student is randomly selected. i. What is the probability that the student got an A grade or is…

A: (i) part is a basic probability problem while (ii) is a conditional probability problem.

Q: Question 3 a) The table below represents the subject scores for 144 students.   Subject Male (M)…

A: Given that  Subject Male (M) Female (F) Total A: Business Ethics 4 14 18 B:…

Q: Suppose the lengths of 3-year old cats are normally distributed with a mean of 30 inches and a…

A:

Q: The average score for games played in the NFL is 22.4 and the standard deviation is 9.3 points. 6…

A: Given that, μ=22.4σ=9.3n=6 (1) The mean and standard deviation of sample mean is,

Q: 2.2. Let Y1, Y2, ..., Y, denote independent and identically distributed random variables from a…

A:

Q: 2. In a study of the life expectancy of 400 people in a certain geographic region, the mean age at…

A: Given that  μ= 70 , σ= 5.1 , n= 50 Formula for Z-score Z=(x̄-μ)/(σ/√n)

Q: You randomly select 14 student cars and find they have a mean age of 7.3 years and a standard…

A: Let  n1, n2 be the sample size  Sample mean  of first and  second are respectively x̄1 amd x̄2  s1…

Q: 7. One of two boxes contains 4 red balls and 2 green balls and the second box contains 4 green and…

A: For the given data Solve the probabilities

Q: An outbreak of the deadly Ebola virus in 2002 and 2003 killed 91 of the 95 gorillas in 7 home ranges…

A: Correlation Correlation is a statistical concept that refers to the level toward which two variables…

Q: The average score for games played in the NFL is 22.4 and the standard deviation is 9.3 points. 6…

A:

Q: Consider the monthly rent (Rent in $) of a home in Ann Arbor, Michigan, as a function of the number…

A: Multiple regression equation : Many regression predicts the value of one dependent variable by…

Q: The value that indicates how much an individual test is related to a factor in factor analysis is…

A: standardized regression coefficient also called beta coefficient or beta weight  Beta weight is a…

Q: sufficient O-negative blood for the coming month. If 4000 donors come to the blood drive, what's the…

A: HERE n = 4000 p  = probability of O- negative blood type  = 0.06

Q: A recent study investigated whether cell phone users experience separation anxiety when they cannot…

A: Standard error of the difference between two means is a useful descriptive statistic in confidence…

Q: A survey organization, as part of the United States Census Bureau, conducts a yearly census similar…

A: Given that  90% confidence interval=(69699  , 69903) 90% confidence interval=(x̄-E , x̄+E)

Q: Here is a bivariate data set. y 79 -20 75 42 90 53 71 -15 76 67 72 -35 78 Find the correlation…

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Q: The number of hits to a website follows a Poisson process. Hits occur at the rate of 1.1 per minute…

A: A discrete random variable X is said to follow Poisson distribution with parameter λ, if its…

Q: The recommended daily allowance (RDA) of iron for adult females under the age of 51 is 18 mg. We…

A: Givensample size(n)=48Mean(x)=16.4standard deviation(s)=4.1α=5%=0.05

Q: why does doubling the recapture sample increase the standard deviation and why does doubling the…

A: Mark and Recapture are the methods used for estimating the population. The technique involves…

Q: 2.4. Let Y,, Y2, ., Yn denote a random sample from a uniform distribution with a pdf given by fyl®)…

A:

Q: Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long…

A:

Q: Each sweat shop worker at a computer factory can put together 4.9 computers per hour on average with…

A: As per bartelby guideline expert have to answer first three subparts only dear student please upload…

Q: A manufacturer of apple phone charges claims that only 4% of his production is defective. In a…

A: Let p be the population proportion od apple phone production defective  n=sample size  p^ be the…

Q: (b) Twenty students randomly assigned to an experimental group receive an instructional program; 28…

A: Hypothesis testing : Hypothesis testing is a type of statistical inference that uses sample data to…

Q: Give the sample space  Getting a defective item when two items are randomly selected from a box of…

A: Given that  Total items=2+3=5 Defective items=2 Non-Defective items=3 2 items are randomly selected…

Q: The following table shows the number of people who have different eye color and hair colors. Hair…

A: We have  the following  data  the number of people  different eye color and hair color.

Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…

A:

Q: In a t-distribution, what is the area under the curve that is to the right of t=2.048 and with…

A: Given,degrees of freedom(df)=28and t=2.048

Q: Does the type of painting and the tray on which the parts are placed affect the mean hardness of the…

A: Count Var A \ Var B B-Category-1 B-Category-2 B-Category-3 Total A-Category-1 5 5 5…

Q: You are an econometrician working in the Ministry of Finance in Trinidad and Tobago and using a…

A: Please note that as per our guidelines we can answer the first question if multiple questions are…

Q: random from hospital records and invited to participate in the study. Each participant's daily…

A: If we want to compare three or more groups mean, then One way anova is used. It is used to determine…

Q: 4. In a survey of 80 students, 33 liked watching anime, 18 enjoyed watching both anime and kdrama,…

A: We create Venn diagram for the above situation.

Q: In a hotel, two dishes- vegetables and non-vegetables are demanded. 80% of its male customers order…

A:

Q: 2. A brand of powdered milk is adve consumer obtained the net weight of 10 randomly selected cans.…

A: Solution: n= 10 Sample size  x =∑xn=248210=248.2 Sample mean s =∑(x-x)2n-1s =191.69s =4.6140  Sample…

Q: 1.3. Find the estimated standard error of the proportion if, in the sample of machines, 36 machines…

A: Given that a paper company has about 50 paper mills, which have a total of 600 machines. From…

Q: From the following data construct the index numbers by Kelley's weighted aggregative method. Items…

A:

Q: In a sample of 250 students in a university, 50, or 20%, are Math majors. Based on the above…

A: Solution: Given information: n= 250 Sample size of students p^= 0.20 Sample proportion of math…

Q: Which of the following statements about time-series forecasting methods is TRUE? Check all that…

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Q: Describe the histograms for the leaf length and the leaf width

A: Histogram is a graphical form that represent the categorical data. It is type of bar chart, since…

Q: A manufacturer of apple phone charges claims that only 4% of his production is defective. In a…

A: We have to test whether only 4% of his production is defective or not. This is z-test for one…

Q: Using the information in the previous example, suppose the company identifies 240 adults who are…

A: Given information: It is given that a company identifies 240 adults who are heavy smokers.

Q: Construct the sampling distribution of the sample mean for the following population and with the…

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Q: Direction: Provide step-by-step solutions to the given problem below. Write your answers on the…

A: Population - 2,5,6,9,11,13 Consider sample size (n=2) from population We have to calculate mean and…

Q: Consider the probability distribution for number of children in local families. Probability…

A:

Q: The average percentage of cities in the US that have snow on Christmas Day is 35%. A recent sample…

A: From the provided information, The average percentage of cities in the US that have snow on…

Q: In a multiple regression equation, what does beta indicate?   Question 4 options:   the weight or…

A: In multiple regression analysis, beta coefficient is the degree of change in the outcome variable…

Q: Two fair dice are rolled. Let A be the event: “the sum of the pair of numbers on  the uppermost…

A: For the given problems Find the number of outcomes and probabilities

Q: Where should the corporation establish the restaurant based on the predicted profit?

A: here use expected value of profit for identifying location of restaurant

Q: The Venn diagram below shows the probabilities of GMA (X) and ABS-CBN (Y as the best TV network in…

A: We have given that from the venn diagram arr P(X) = 0.28 + 0.15  = 0.43 , P(Y) = 0.34 + 0.15 = 0.49…

Q: Customers can replace 1, 2, 3, or 4 tires at a time for their vehicle at Thrifty Tires, a nationwide…

A: Here, mean is 3.86 and standard deviation is 0.99. Sample is 7. We will use sampling distribution.