Transcribed Image Text: The value x 56 should be used in the model to predict the revenue of Amazon in what year? Amazon Revenue The annual revenue of Amazon is given in the table below (source). Amazon Annual Year Revenue (Billions of US dollars) 2020 386.064 2019 280.522 2018 232.887 2017 177.866 2016 135.987 2015 107.006 2014 88.988 2013 74.452 2012 61.093 2011 48.077 2010 34.204

Q: Let the 2-dimensional random variables (X, Y) have joint uniform density function f(x,y) = ²,0≤x≤3,…

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Q: Compute and interpret the value of r for each of the following: a. ΣΧ = 225 ΣΥ = 22 ΣΧ2 = 9653 ΣΥΖ =…

A: Given,∑x=225∑y=22∑x2=9653∑y2=143∑xy=651n=6

Q: art A: A highway's path can be found using the equation 2x + 3y = 18. Use the graphs of the…

A: Given:

Q: Correlating the active accounts to promotional accounts, competing brands and potential in 2 decimal…

A: Solution: No. of variables=5Variable=1. Sales (Y)2. Promotional accounts (X1)3. Active accounts…

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A: The indicated graph shows whether houses in a neighborhood have a garage or not. A value of "1"…

Q: | 6. The effects of two catalysts on the mean yield of a chemical process are being investigated.…

A: Claim : There is difference between the mean yields from the two catalyst

Q: The cost of 5 gallons of ice cream has a standard deviation of $8 with the mean of $29 during the…

A: SOLUTION Given that The cost of 5 gallons of ice cream has a standard deviation of $8 with the mean…

Q: onsider the ff. data set, in which a maker of asphalt shin rticular year and factors that influence…

A: The given data is y x1 x2 x3 x4 291.9 9 56 5 10 160 4 42 8 4 339.4 6.5 73 5 16 159.6 5.5…

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A: The objective is to comment on what the graph shows and also mention alternative graphs that can be…

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A: Given that  Level of significance (α) = 5% = 0.05 Null hypothesis H0 : p=0.5 Alternative hypothesis…

Q: he state from a population that you know to be 55% Hispanic. a. How many jurors would you expect to…

A: Note: As per the answering guidelines I have to answer only three subparts at  a time. please repost…

Q: What happened to the confidence intervals when the level of confidence increased to 99%? (The first…

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Q: State the null and alternative hypotheses for each of the following situations. (That is, identify…

A: d) The  average yield per acre for all types of corn is μ0=161.9. μ0 is the hypothesized mean and μ…

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Q: A newborn baby is classified as having Extremely Low Birth Weight (ELBW) if it weighs less than 1000…

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Q: 6. Given a random sample X₁, X2, ..., Xn from a normal distribution with known mean μ = 0 and…

A: Sorry for the apology but we cannot provide handwritten solutions.

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A: Since you have posted multiple questions, we will solve the first question for you. If you ant any…

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A: Given that, sample size(n )=25 sample mean( x̄ )=1224 population standard…

Q: Month Jan Feb March April May Forecast Actual 10

A: We know that the Mean squared error = (1/n)*Σ(T -E(T))2 where T is the true or actual value and E(T)…

Q: Suppose the force acting on a column that helps support a building is a normally distributed random…

A: GivenMean(μ)=13.0standard deviation(σ)=1.5

Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho:…

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Q: Let μ = E(X) and o² = Var(X). Choose ALL which, you think, are correct. 5 562x

A: Here given  μ = E(X)  and σ2 = Var(X)

Q: A sample of n = 4 scores was collected from a population with unknown parameters. Scores: 1, 4, 6,…

A: Given that  Sample size (n) = 4 Sample scores = 1 , 4 , 6 , 1 Sum of scores = 1+4+6+1 = 12   We know…

Q: What type of t-test would be most appropriate to test the hypothesis that their average estimated…

A: here given , Kruger and Dunning (1999) published a paper called "Unskilled and Unaware of It", in…

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A: Given data: p1=0.60p2=0.25p3=0.15  No regular exercises = 255 (wrongly print on question) Sporadic…

Q: a. Calculate a point estimate of the population mean. 6.55 b. Calculate a point estimate of the…

A: a) The number of observations n is 20.

Q: The data were collected from a statistics class. The column head gives the variable, and each of the…

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Q: What does the result of sig. value indicate? pick the correct letter. a. variances of the…

A: We have to choose the correct option regarding the statement "what does the result of sig. value…

Q: According to Abyss Consulting, the average age of viewers of “America’s Got Talent” is 25 years old.…

A: The hypothesized mean is 25.

Q: WNBA basketball player Cynthia Cooper scores on 87% of her free throws.  What is the expected…

A: Given,q=P( Cynthia Cooper make a score)=0.87p=P(she is not making a score of her free…

Q: 6 months with a standard de nce to conclude that the groce esos every 6 months at a = 5

A: Hypothesized Population Mean =4200042000 Population Standard Deviation  = 52005200 Sample Size = 20…

Q: In order to use a certain polymer, its firmness must be greater than 48 MPa. 14 specimens were…

A: Givenpopulation mean(μ)=48sample size(n)=14Mean(x)=48.4standard deviation(s)=1.0

Q: Y hav density function f(y) = determine E(Y) and E(Y²) П (атв) ya-ı Г(а) ГСВ) (тузатво yo

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Q: Independent t-test is an example of what kind of test? Probability, Parametric, Paranormal, or…

A: An Independent t-test is an example of a Parametric test.

Q: A bolt manufacturer makes a type of bolt to be used in airtight containers. The manufacturer claims…

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Q: In testing a certain kind or truck tire over rugged terrain, it is found that 30% of the trucks fail…

A: Given n=15 P=0.30

Q: The accompanying table gives the population (in hundred thousands) and number of people not covered…

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Q: When using a Chi-square test, the expected frequency, E, has to be at least 5. State two possible…

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A: The following information has been provided: Calories (x) Sodium (y) 150 430 180 480 120…

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Q: distributed. Use calculator program to find the 99% confidence interval for μd

A: Given : Student 1 2 3 4 5 6 Test A 121 93 71 119 104 100 Test B 121 91 72 122 108 100

Q: 2. A factory has a machine that dispenses 80 ml of fluid in a bottle. The head of the production…

A: Claim : the average amount of fluid is not 80 ml.

Q: The data were collected from a statistics class. The column head gives the variable, and each of the…

A: Given data are collected from statistical class Male Age Eye color Shoe size Height(inches)…

Q: Problems 18 – 22 Data for the days of rain in June from past years for three different states are…

A: List of formula :  F ratio= MSBMSW Where ,  MSB= ∑∑xi2ni- ∑xTOT2Nk-1 MSW = ∑∑xi2-∑xi2niN-k

Q: State the null and alternative hypotheses for each of the following situations. (That is, identify…

A: From the provided information, The average time workers spent commuting to work in Verona five years…

Q: If A and B are in Golden Ration, then is equal to B a. 0.618 b. 0.816 c. 1.608 d. none of these a b…

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Q: 6. The effects of two catalysts on the mean yield of a chemical process are being investigated. UA…

A: We have given that, the Claim difference is there is difference between the mean yields from the two…