ASAP PLS ANSWER THANKS

C1 C2 Before After 20.3 15.0 2 18.9 20.3 3 20.9 21.8 4 21.3 20.8 5 20.2 18.0 18.8 23.7 7 20.9 18.5 B 22.5 26.7 9 18.8 17.2 10 18.4 22.1Use the sample phone battery life data measured before and after an update was applied to answer the following questions. Assume m1=the battery life of a phone before a software update was applied, m2=battery life of the same phone after a software upgrade r. Calculate a point estimate for m1m2? (1 point) s. Calculate a 90% condence interval estimate for m1m2. (1 point) t. Based on your answer to the previous question, can we state that software update improved the battery life? {2 points) u. Dene your hypothesis to test whether if the update improved the battery life? {2 points) v. What is the value of the test statistic for the above hypothesis? (2 points) w. What should be the value of our test statistics to reject the null hypothesis with alpha equal to 0.10? (2 points) x. What is the pvalue for the above test? (1 points) y. With alpha=0_05 what would be our conclusion? {2 points) 2. Determine the sample size to achieve a sampling error of 1hr in a 95% condence interval on m1m2. (3 points)