Psy 2020 Experimental I: Applied Statistics Lab 3: Hypothesis testing with z Dr. Lindemann Welcome! Here you will work through a hypothesis testing example using the z-statistic. We are not using SPSS for this lab. Please type your answers in this document and submit this file in Blackboard. Population parameters In the U.S. adult population, people watch on average =3 hours of videos per day with a standard deviation of =2 hours. Study description A researcher wants to know whether people's time spent watching videos was affected by the Covid pandemic. She asked a sample of n=81 people how many hours of videos they watched per day during the Covid pandemic. They reported watching = 3.5 hours of videos per day. 1) State the independent variable (IV). 2) State the dependent variable (DV). 3) State the Null hypothesis (H0): 4) Statement the Alternative hypothesis (H1): 5) State your zcv (Use =.05 and a non-directional/2-tailed test): 6) Calculate your zobtained (fill in the information below and use the formula) a. = b. = c. n= d. = e. = = x - = 7) Compare your zobtained to your zcv; in order to draw a conclusion about