answer both questions with explanation without using Matlab..without Matlab

Q1. The deflection temperature under load for two different types of plastic pipe is being investigated. Two random samples of 15 pipe specimens are tested, and the deflection temperatures observed are as follows (in 'F), and both are normally distributed: Type 1 210 192 209 191 198 197 211 189 193 217 196 214 198 182 209 Type 2 181 201 210 205 184 180 189 204 201 196 202 192 193 207 196 (a) Do the data support the claim that the deflection temperature under load for type 1 pipe exceeds that of type 2? In reaching your conclusions, use a=0.05. Calculate a P-value. (b) If the mean deflection temperature for type 1 pipe exceeds that of type 2 by as much as 5 F, it is important to detect this difference with probability at least 0.90. Is the choice of n1 = n2 =15 adequate? Use a=0.05