You may need to use the appropriate appendix table or technology to answer this question. Given are five observations fo

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You may need to use the appropriate appendix table or technologyto answer this question. Given are five observations for twovariables, x and y. (Round your answers to two decimal places.) xi1 2 3 4 5 yi 4 8 6 11 13 (a) Use sŷ* = s 1 n + (x* − x)2 Σ(xi − x)2to estimate the standard deviation of ŷ* when x = 5. (b) Use ŷ* ±t𝛼/2sŷ* to develop a 95% confidence interval for the expected valueof y when x = 5. to (c) Use spred = s 1 + 1 n + (x* − x)2 Σ(xi −x)2 to estimate the standard deviation of an individual value of ywhen x = 5. (d) Use ŷ* ± t𝛼/2spred to develop a 95% predictioninterval for y when x = 5.