2. A local college wanted to know if there is any relationship between grades as a high school senior and grades as a college freshman. Grades are recorded as average during the last year of high school and the average during the freshman year of the college. Plot the data. Calculate r. is r significant at a = 0.05? H.S. 74 91 College 78 81 90 80 95 87 93 94 83 92 94 98 98 78 88 94 76 87 86 84 88 97 80 88 89 70 83

Q: Suppose that a random sample X is given by a probability density function 2 {/² B - ·(B2), 0<x<ß…

A:

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Q: Find the range of the given data: 53,17,73,37,73,83,83,94,54,16

A: Given data is, 53,17,73,37,73,83,83,94,54,16 We have to find the range of the data. Given data in…

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A: Given information: Sample size (n)=129 Based on the sample box plot is given. Find: Question 13.…

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A:

Q: 6. Five different laboratories participated in an inter-laboratory study involving determinations of…

A:

Q: Medical researchers have developed a new artificial heart constructed primarily of titanium and…

A: Ans#-  A random sample n = 50            The sample mean( x) = 4.05            Assume that battery…

Q: Medical researchers have developed a new artificial heart constructed primarily of titanium and…

A: Given that: Sample size, n=50 Population standard deviation, σ=0.2 Sample mean, x¯=4.05 Significance…

Q: NW 3.7 Two marbles are drawn at random and without replacement from a box containing two blue…

A: Since we know that 2 marbles are drawn from box containing two blue marbles and 3 red marbles in 5C2…

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A:

Q: The current student population of New York City is 2300. If the population increase at a rate of 19%…

A: given data  initial current population (a) = 2300 population increase rate : 19% each year (∴ growth…

Q: The number of streetlights in a town is growing linearly. Four months ago (t = 0) there were 47…

A: It is given that, four months ago t=0 there were 47 lights. and now t=4 there are 107 lights.

Q: Age (yrs) 0-14 15-29 Pop. 60-74 3,000 ≥75 4,000 % pop 30-44 11,000 18 18,000 5 45-59 19,000 31 7 29…

A: Hint:  The number of deaths per 1000 populations in an interval= total deathstotal Population×1000

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A: Given that: Morning Class Afternoon Class 35 34 40 38 28 26 38 39 35 34 29 28 36 35…

Q: If P (B) = 1/4, P (A ∪ B) = 1/2 and P (A|B) = 2/3, then which of the following statements is true?…

A: GivenP(B)=14P(A∪B)=12P(A|B)=23

Q: Question 7 1 10 2 Enter an improper fraction if necessary. Evaluate w when w = Provide your answer…

A: We have to evaluate (7/10) - w We have given that w = -1/2

Q: Suppose that Y₁, Y₂, ..., Ym is a random sample of size m from Gamma(a = 3, ß = 0), where 0 is not…

A:

Q: A researcher collects data by interview on a sample of households to find out if people who read…

A: Hint: Use a two-sample t-test to difference of two means as; t=x¯-y¯2S12n1+S22n2 ~ tn1+n2-2

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A: Given that A sociologist is in the process of surveying single parents. What type of study is that?

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A: The given sample size is 52, sample mean is 24 and sample standard deviation is 5.

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A: normal distribution is bell shaped, unimodal and symmetric shape

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Q: K The weights of ice cream cartons are normally distributed with a mean we of 0.3 ounce. (a) What is…

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Q: If right-eye and left-eye dominance are equally prevalent, what would you expect the  numerical…

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A: Given data is Class Interval  Frequency 0 to &lt;10 5 10 to &lt;20 13 20 to &lt;30 16 30…

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A: Given information: POnly Jiang=12=0.50PMarla and Jiang=14=0.25PJiang and Tara=38=0.375

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A: It is given that the statement about to the type of sampling. Here, need to find out the correct…

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A:

Q: A computer manufacturer conducted a survey. It showed that a younger customer will not necessarily…

A: As correlation measures the degree of linear relationship between two variables.

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Q: How do I figure out the first quartile and the third quartile is? How do I determine the percentile…

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A: It is given that P0=90 and P1=162.

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A: given data initial population p0= 14growth rate r = 0.35

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A: given data margin of error E = 2.5 yearsstandard devistion σ = 19.7 years90% ci, n = ?

Q: What is the standard deviation (s-hat) of the sample if N = 50, sum of X = 5,165, and sum of X^2 =…

A: It is given that  N = 50 ΣX = Sum of X = 5165 ΣX2 = Sum of X2 = 534723

Q: Find the outliers in the following data set: 3, -5,2,2, 13.5, 6, 3,7. Find (a) Q₁-(1.5)(1QR) = (b)…

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Q: stitution? I have to use the Column Correspon

A: Is (1,2,3,4,5,6)∈ span( (1,1,1,1,1,1),(0,1,0,1,0,2),(6,5,4,3,2,1)) &gt; A x1 x2 x3 x4 x5 x6…

Q: If a stock is selected at random, what is the probability it paid dividend?

A: It is given that Number of stocks paid dividend = 40 + 75 = 115 Total = 40+75+87+48 = 250

Q: Study B: The decoy effect is the phenomenon that an additional but worse option can boost the appeal…

A: Given information: Study B: The decoy effect is the phenomenon that an additional but worse option…

Q: The test statistic of z= -1.77 is obtained when testing the claim that p *0.619. This is a…

A: Given Test statistic Z=-1.77,  Hypothesis Ho: p=0.619 vs H1: p≠0.619 (claim) two tailed  Level of…

Q: find the probability distribution of X.

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Q: a. Express the original claim in symbolic form. Let the parameter represent a value with respect to…

A: Given: sample size, n=292 Sample mean, x¯=120.86 Sample standard deviation, s=14.88

Q: In an experiment, 10 trials were done to determine the range of a trajectory. The measurements for…

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Q: 1. A shipment of 7 television sets contains 2 defective sets. A hotel makes a random purchase of 3…

A: Given that  Total television sets = n = 7  Defective television sets = 2 Randomly purchased of 3 of…

Q: 17) Let (x, y) be two-dimensional random variable described by the joint pdf £x₁y (x, y) =…

A: Given joint pdf  f(x,y)=8xy 0≤x≤1, 0≤y≤x