help with and explanation for homework question please

Scenario 1: The Population Mean for Women's Height is 65" and the Population Standard Deviation is 3.5". A researcher tests whether a new Stretching Machine will significantly increase height in women. The researcher selects a sample of 12 women and has each use the stretching machine for 10 minutes per day for 12 months. At the end of the 12-month period the research measures each woman's height and calculates the sample mean. The sample mean is 67". The researcher wants to maximize the power of the test. The data are presented below. Subject Height (X - M) (X - M)2 1 68 69 W N HOP OHOHN NNWHONH OHOHAS 10 67 11 68 12 67 Mean Height Mean 67 SS 21 SS HeightQuestion 5 8 pts If appropriate, calculate the 95% Confidence Interval. What is the value of the UPPER BOUND of this Confidence Interval? Note: If there are Decimals, Input Answer to 2 Decimal Places. Also Note: If it is NOT appropriate to calculate, input 999. Question 6 8 pts If appropriate, calculate the effect size (d). What is the value of the effect size? Note: If there are Decimals, Input Answer to 2 Decimal Places. Also Note: If it is NOT appropriate to calculate, input 999