Question

Based on an hour of screen time on 12 I-Phone and Samsung devices determine if there is a difference between the number of ads received between both devices.

Number of ads	Phone Type
20	I-phone
25	Samsung
15	I-phone
30	Samsung
35	Samsung
25	I-phone
40	Samsung
10	I-phone
30	Samsung
35	I-phone
20	Samsung
15	I-phone

1. What are the independent and dependent variables?
2. Calculate the Total Variation (SST), Unaccountable Variation (SSunacct), and Accountable Variation (SSacct) for these data.
3. Calculate eta square and give a verbal interpretation of eta square.
4. Calculate the standard deviation for each type of phone assuming these are sample data.
5. Draw a simple bar chart illustrating the data.
6. Does there appear to be a difference in the number of ads received? Describe your reasoning.

Answer 1

Here we have data given on the "Number of ads" on "different devices", this is the case of the poisson distribution.

Please find the attachd images for the detailed solution.

Thank you.