and 2. For Module 3, you will: 1. include contributions from Modules 1 & 2 with corrections, 2. evaluate the type of sampling used and make recommendations for improvement for future sampling, 3. create a confidence interval that can be used to estimate the true population parameter for your data and 4. validate the proper sample size needed to carry on further study. ber of hoQQIE 28 5 29 30 The Mean number of hours slept by the 30 friends is 7.3. Median is 7 which imply half of my friends have sleeping hours less than 7 and other half has more than 7 sleeping hours. Mode is the number occurring maximum number of times. This implies maximum hours of sleep is of 7 hour. Standard deviation and Variance is 1.98 and 3.94. Their low values implies mean is reliable. The minimum and maximum hours of sleep are 4 and 10 hours. Table Chart Text Shape ment M1 Project Contribution I want to test if the sleeping hours of my co-workers are greater than 8 hours or not. I rely on sampling technique like convenience sampling. I ask my friends and their friends on Facebook about the number of hours they sleep. In this way I collect 30 responses. The data collected is given below. Number of people: Number of course slept: 1 2 3 4 10 7 4 7 5 8 6 10 7 7 8 4 10 7 11 7 12 13 7 I 14 15 6 6 16 10 10 17 10 18 19 20 5 21 10 22 8 25 23 24 25 26 27 eco