he compressive strength of concrete is being tested by a civil engineer. She tests 12 specimens n obtains the following data (in psi): 2254 2225 2244 2261 2274 2291 2212 2279 2268 2235 2248 2234 Assuming that the compressive strength is normally distributed, test the hypothesis that the mean strength is at least 2246 psi. Report your P-value and use a 95% confidence level to draw your conclusion. P-value (a) Cannot Reject (b) Reject Now assume that the compressive strength is not normally distributed, and test the hypothesis that the median strength is greater than 2250 psi. Report your P-value and use a 95% confidence level to draw your conclusion. Hint: if the median is 2250 psi, then you can count how many of the samples have strengths above and below that value. And if you view the data as being either above or below the median, you can calculate the related P-value. P-value