PLEASE ANSWER QUESTION NUMBER ONE AND GIVE ME STEP BY STEP ON HOW YOU SOLVED IT.

1) Calculate a 95% and 99% condence interval for the following data set. Note: this is a sample. Show your steps including the mean, zscore, standard deviation, and standard error that you use. 2) In an experimental treatment, a random individual scores 51 on a measurement. People in general are normally distributed with a mean of 37 and a standard deviation of 7. The researcher predicts that the treatment will create an effect on the subject, but does not specify if the measurement will increase or decrease. Using a 5% signicance level (p