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You may need to use the appropriate appendix table or technology to answer this question. Given are five observations for two variables, x and y. (Round your answers to two decimal places.) (a) Use SW. = s i + _ to estimate the standard deviation of {2* when X = 5. 57.21 x (b) Use W i 6425)?= to develop a 95% confidence interval for the expected value of y when x = 5. 48.23 x to 66.19 x (x* W (C) Use Spred = s 1 + i + to estimate the standard deviation of an individual value ofy when x = 5. n 209. if (d) Use 57* :I: ta/Zspred to develop a 95% prediction interval for y when x = 5. 33.07 x to 81.35 x