Energy Consumption: A sample of ten households was monitored for one year. The household income (in$1000s) and the amount of energy consumed (1010 joules) were determined. The results follow.Income Energy Income Energya.3140284819516.040.2InterceptIncome29.845.6184.6Multiple RR SquareAdjusted R SquareStandard ErrorObservations96701001457898.393.8The following output was obtained after performing regression analysis in Excel:Regression Statistics77.1114.867.0c. Interpret the value of the slope.0.95984720.921306650.9114699814.75443410coefficientsstd. error4.1659 8.9409310.888239 0.091781 9.677832 0.00000522134t (df-8)0.325169p-valueLower 95%0.753394 -17.7105120.675Give the value of the correlation coefficient and interpret its meaning.Upper 95%23.5251361.095b. Compute the least-squares regression line for predicting energy consumption () from income (x).d. Predict the amount of energy consumption for a household with an income of $150,000. Round to the nearesttenth. e. What is the 95% confidence interval for the slope. You do not have to interpret the results.f. Construct a 99% confidence interval for the slope. You do not have to interpret the results.g- Test Ho: P₁ = 0 versus H₁: B₁ > 0. Can you conclude that income is useful in predicting energy consumption?Use the a = 0.05 level of significance.Is this a left-tailed test, a right-tailed test, or a two-tailed test?ii.iii.iv.V.What is the value of the test statistic? Do not round.Identify the p-value for this procedure. Do not round.Using the p-value method, should Ho be rejected at the a = 0.05 level of significance? Why or why not?Can you conclude that income is useful in predicting energy consumption?

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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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A manufacturer of aluminium cans measured the level of impurities in 24 cans. The amounts of impurities, in percent, were as follows. 3.6 1.6 2.0 2.4 6.7 1.4 3.2 5.2 3.8 5.6 8.9 4.1 4.5 4.7 5.0 2.8 5.8 6.1 3.9 6.9 8.0 3.4 3.2 3.8 part 2. yes or no
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Statistics Question
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Fahrenheit is the measurement of temperature commonly used in the US. On the Fahrenheit scale, water freezes at 32 F and boils at 212 F (at sea level). What is the data type and measurement scale of a dataset that records Fahrenheit temperature? a. Numerical and ratio b. Numerical and interva c. Categorical and ratio d. Categorical and ordinal
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