A student calculates the value of r as +0.72 for a question comprising 5 pairs of observations and concludes that there is high degree of correlation between the variables. Do you justify his conclusion ?

Q: Q2. Identify the Incorrect statement. In a Binomial Distribution each trial: A. Has the same 2 possi...

A: we know; in a binomial distribution- 1. each trials are independent. 2. each trials has only 2 outco...

Q: You create a new hypothesis test on data X1, ..., X100 with the null assumptions that they are Norma...

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Q: Situation 1. To find out the effectiveness of a Strategic Intervention Material, Mrs. Lunes conducte...

A: Given information: Student Pretest Post test 1 32 35 2 25 30 3 18 29 4 33 33 5 25 23 ...

Q: 6. Between z = -2.76 and z = -1.25 7. To the right of z = 2.35 8. To the left of z = 0.35 %3D %3D

A: Given that  Z~Normal(mean=0,Standard deviation=1) 6. Between z = - 2.76 and z = - 1.25 7. To the rig...

Q: 1) What is the standard deviation of the sampling distribution for this situation? Round to four pla...

A: Given : n=72 Mean=149000 Population standard deviation =44000

Q: 700 and a standard deviation of 100 points. Sammy's score was higher than 93.7% of all participant s...

A: Given:    let x be the score follow normal distribution with mean mu=700 and standard deviations=100...

Q: Suppose that a population consists of the values 11, 15, and 20. 1) What is the population mean, pop...

A: Given: Population consists of the value = 11, 15, and 20

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The resul...

A: Givensample size(n)=17sample mean(x)=42standard deviation(s)=4confidence interval=99%

Q: Calculate standard deviation from the following data taking deviations from assumed mean 65: Marks :...

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Q: What is the correlation between happiness and volunteer hours?

A: The output shows the results of a correlation analysis, examining the relationships between happines...

Q: Q5. Which of these is not a binomial probability? A. 10C4× (0.4)*(0.6)6 B. Cs (0.7) (0.3)? C. 10C5 x...

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Q: (a) Compute the mean and median percentage of hourly employees being laid off at these stores. mean ...

A: Given that  The data are 56 57 45 44 45 57 61 63 58 46 37 39 51 70 66   n=15 Note: According t...

Q: Suppose the CDF of a random variable x is given by x2)?

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Q: The length of bolts produced in a machine shop are normally distributed with mean lengtn 11.8cm. A b...

A: Given that  Mean=11.8cm A bolt that is 12.033cm long is in the 99th percentile compared to all other...

Q: The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-sh...

A:

Q: (c) What is the probability that none of the five have written an editorial letter while under the i...

A: Given that  n=5 , p=32%=0.32 , q=1-p=2-0.32=0.68 X~Binomial(n=5,p=0.32) X=Number of written an edito...

Q: Five groups of subjects were given the following four conditions. The data obtained is given below. ...

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Q: If a mixture calls for 320 fluid ounces of ethanol, how many quarts is that?

A: Ethanol means ethyl alcohol It is colourless flammable liquid. 

Q: Calculate Price Index for 1995 and 1996 using 1990 as base year from the following data : Соmmodity ...

A: From the provided information, Commodity Prices ($ per unit)   1990 (P0) 1995 (P1) 1...

Q: Judge and Cable (2010) report the results of a study demonstrating a negative relationship between w...

A: We have given that  Weight 4 5 3 2 1 3 1 5 Income 151 88 52 73 49 92 56 143 Then we have to ...

Q: Let X represent the full length of a certain species of newt. Assume that X has a normal probability...

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Q: Given the following information relating to two places, A and B, test whether there is any significa...

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Q: The ranks of the same 15 students in two subjects A and B are given helow; the two Tiumbers within t...

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Q: Calculate range and its co-efficient from the following statistical data: Profits ( $ in 000's) 125,...

A: From the provided information, The data values are as follow: 125, 50, 30, 20, 80, 85, 90, 160, 180,...

Q: You have the blow metrics for a model: TP = 40, TN = 45, FP = 7, FN = 8. The cost associated with mo...

A: The given metrics for the model are shown belowTPFPFNTN=407845 The cost associated with the model ar...

Q: Suppose you just received a shipment of fifteen televisions. Two of the televisions are defective. I...

A:

Q: Given in the following informátion in case of two attributes : (AB) = 400, (A) = 800, N= 2,500, (B) ...

A:

Q: 9. Veronica ran a marathon (26 miles). How many yards is that?

A: Veronica ran a marathon of 26 miles : We have to calculate yards. 

Q: Activity 17. Directions: Test the hypothesis of the following statistical situation: Determining whe...

A: Given information: Male Female 42 48 33 39 21 50 35 41 46    

Q: For items 1 - 5, use the data below that gives the humerus bone length (in cm) and height (in inches...

A: The least square regression line is given by,   ŷ = bx+a Where  b= {n*∑xy-(∑x)*(∑y)}/{(n*∑x2 -(∑x)2}...

Q: 6. If the weight of an average passenger vehicle is 4400 pounds, how many short tons is that?

A: Pounds to tons : 1 Pound = 0.0005 tons   2000 pound = 1 tons

Q: a) What is the probability that exactly two patients will arrive in a given hour? b) What is the pro...

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Q: As a warehouse manager, it is your responsibility to inspect a large shipment of components for defe...

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Q: 4. Mary Pineda ran against Bernie Leoncio for congreesman. In one precent, one of the two voting mac...

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Q: Find the standard deviation of the observations 5, 11, 18, 25 and 41, using mutual differences betwe...

A: Given: data data values  Xi: 5,11,18,25,41  Then to find standard deviations using mutual difference...

Q: According to a poll, about 18% of adults in a country bet on professional sports. Data indicates tha...

A: It is given that the probability of adults in a country bet on professional sports is 0.18 and the p...

Q: 2014 Top Albums (Based on U.S. sales) Of all of the U.S. album sales, album 1 accounted for 22% of s...

A:

Q: Rush

A: Given that  provided: Hypothesized Population Mean (\mu)(μ) = 1414 Population Standard Deviatio...

Q: Q. 8. Calculate co-efficient of correlation from the followine results: N= 5 Ex = 80 Ey = 130 E(x-5)...

A:  

Q: 1.A bag of candy was opened and the number of pieces was counted. The results are shown in the table...

A: Ans#1- Given, a bag of candy was opened and the number of pieces was counted. Color Frequency R...

Q: The average score on a statistics test was 2.52 with a standard deviation of 0.75. The teacher suspe...

A: Given : E(x) =2.52, SD(x) =0.75 Var(x)=0.752 =0.5625 New score is y=ax+b Such that : E(y) =3.58 SD(y...

Q: 8. A recipe calls for 12 tablespoons of molasses. How many fluid ounces is that?

A: Given : A recipe calls for 12 tablespoons of molasses. We have to calculate fluid ounces 

Q: Select all answers that are true about the error sum of squares.   It's an evaluation of how well a...

A: We have to choose right options for error sum of squares. 

Q: For the following data: X Y 3 8 5 8 2 6 2 3 4 6 1 4 4 7   Find the regression equation for predictin...

A: We have given : Data for x&y We have to calculate regression equation. 

Q: What do you understand by independence of attributes ? Give a criterion of independence for attribut...

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Q: Q5. Find the conditional probability Pr(B|A) Prob. Venn Diagram Incomplete Carroll diagram A 0.3 0.1...

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Q: What is the correlation between happiness and health?

A: The SPSS output shows the correlation analysis of happy, health, volunteer, family income, stress an...

Q: If X is a Poisson variable such that P(X = 2) = 9P(X= 4) + 90P(X= 6), find the mean and variance of ...

A:

Q: (a) How many standard deviations above the mean did Sophia score on the Verbal Reasoning section? (...

A: X1=Verbal Reasoning section   X2=Quantitative Reasoning section X1~N( μ1=151 , ?1=9 ) μ1 =151 , ?1 =...

Q: A car plant produces about one hundred cars per day independently of any other day with probabilitie...

A: A Markov chain is a process X t : t ≥ 0 that satisfies the Markov's property. Here, X t is the state...