Does color enhance creativity?Test the indicated claim about thestandard deviations or variances oftwo populations. Subjects are given acreativity exercise on a computerwith either a red background or ablue background. The scores areshown in the table. At the 0.01significance level, test the claim thatthose tested with red backgroundhave creativity scores with a standarddeviation equal to the standarddeviation for those tested with a bluebackground.RedBlueBackgroundBackgroundn2 = 35I2 = 19.6n1 = 32%3D*1 = 19.5S1 = 1.38S2 = 1.71%3DWhat are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)Họ: Select an answer v? v Select an answer vH1: Select an answer? v Select an answer vOriginal ClaimSelect an answer v%3D Based on the hypotheses, find the following:Enter the critical values, along with the significance level and degrees of freedom x(a,df num, df den)below the graph. (Graph is for illustration only. No need to shade.)X²- Distribution0.120.10.080.060.040.02Test Statistic =(Round to three decimal places.)p-value =(Round to four decimal places.)Decision: Select an answerConclusion: Select an answer| the claim that those tested with redbackground have creativity scores with a standard deviation equal to the standard deviation for thosetested with a blue background.ProbabilityTE37435561736410360T115121127133139

Given- n1=32x1=19.5s1=1.38 n2=35x2¯=19.6s2=1.71 α=0.01

Does color enhance creativity? Test the indicated claim about the standard deviations or variances of two populations. Subjects are given a creativity exercise on a computer with either a red background or a blue background. The scores are shown in the table. At the 0.01 significance level, test the claim that those tested with red background have creativity scores with a standard deviation equal to the standard deviation for those tested with a blue background. Red Blue Background n1 = 32 71 = 19.5 Background n2 = 35 I2 = 19.6 %3D %3D %3D S1 = 1.38 $2 = 1.71 %3D What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Họ: Select an answer Select an answer H1: Select an answer Select an answer Original Claim = Select an answer v

Does color enhance creativity? Test the indicated claim about the standard deviations or variances of two populations. Subjects are given a creativity exercise on a computer with either a red background or a blue background. The scores are shown in the table. At the 0.01 significance level, test the claim that those tested with red background have creativity scores with a standard deviation equal to the standard deviation for those tested with a blue background. Red Blue Background n1 = 32 71 = 19.5 Background n2 = 35 I2 = 19.6 %3D %3D %3D S1 = 1.38 $2 = 1.71 %3D What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Họ: Select an answer Select an answer H1: Select an answer Select an answer Original Claim = Select an answer v

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Calculate the sample variance and sample standard deviation of restaurant visits.
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estion Help In a psychology journal, researchers reported that a chief executive officer's facial structure can be used to predict a firm's financial performance. The study involved measuring the facial width-to-height ratio (WHR) for each in a sample of 51 CEOS at publicly traded Fortune 500 firms. These WHR values (determined by computer analyzing a photo of the CEO's face) had a mean of x = 1.81 and a standard deviation of s = 0.12. Use this information to complete parts a and b below. a. Find and interpret a 90% confidence interval for u, the mean facial WHR for all CEOS at publicly traded Fortune 500 firms. (Round to three decimal places as needed.) O A. The 90% confidence interval for mean facial WHR indicates that the true mean facial WHR for the CEOS in the sample is between and with 90% confidence. O B. The 90% confidence interval for mean facial WHR indicates that 90% of all CEOS at publicly traded Fortune 500 firms have a WHR between and O C. The 90% confidence interval for…
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Answer.
Fill in the blanks. a. Positive correlations between observations of the response variable result in an underestimate of ________. b. Data collected from a designed experiment is generally preferable to data obtained from ________. c. Adata point whose removal has a substantial effect on one or more sample regression coefficients is called an _________.
Does color enhance creativity? Test the indicated claim about the standard deviations or variances of two populations. Subjects are given a creativity exercise on a computer with either a red background or a blue background. The scores are shown in the table. At the 0.05 significance level, test the claim that those tested with red background have creativity scores with a standard deviation equal to the standard deviation for those tested with a blue background. Red Background Blue Background n1 = 39 n2 = 34 xˉx̄1 = 19.6 xˉx̄2 = 20.5 s1 = 0.72 s2 = 0.01 What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.)H0: Select an answer x̄₂ x̄₁ μ(red) p₂ p μ₁ μ₂ σ₁ s₁² σ(red) p₁ μ p̂₁ ? ≠ < > ≤ ≥ = Select an answer μ₁ μ₂ p₁ μ(blue) p σ₂ p₂ σ(blue) s₁² x̄₁ x̄₂ μ p̂₁ H1: Select an answer μ σ₁ x̄₁ μ(red) p̂₂ p₁ s₂² p₂ μ₂ μ₁ σ(red) x̄₂ p ? ≤ ≥ ≠ > = < Select an answer μ(blue) σ(blue) p μ μ₁ p₁ x̄₂ s₁² x̄₁ σ₂ p̂₁ p₂ μ₂…