Use the data found in Sheet Savings to answer the following questions. An financial adviser is creating a report on the annual interest rates of savings accounts. He obtains the annual interest rate for a random selection of 25 brick-and-mortar banks and 25 online banks.

1. Create a histogram for interest rates at each type of bank. Use a bin width of 0.25.
2. Calculate and interpret the sample mean and sample standard deviation of interest rates at each type of bank.
3. Calculate and interpret a Z-score for an interest rate of 2.5.

Brick-and-Mortar	Online
1.15	1.75
1	1.6
0.75	1.2
1.05	1.25
0.95	1.8
0.8	1.7
2.15	1.95
1.4	1.85
0.6	1.2
0.8	1.65
0.85	1.55
1.25	2.15
0.6	2
1.1	1
1	1.55
0.5	1.55
1.3	1.75
1.05	1.6
1.2	1.85
0.9	2
1.25	1.45
1	1.4
0.75	1.95
0.95	1.5
0.6	1.8