60. Suppose a researcher is interested in predicting anxiety level based on the number of Instragram posts per week. Data collected from 5 college students are shown below: Instagram Posts Anxiety (X) (Y) 7 14 6 16 6 11 4 7 7 12 a) State your null and alternative hypotheses b) Find the mean of each variable. c) Find the standard deviation of each variable. d) Find the correlation between the two variables. e) Calculate each part of the regression line, and write the prediction equation below