Colin is a student in a consumer mathematics class creating a report on the annual interest rates of savings accounts. He randomly selects 10 brick-and-mortar bank and 10 online banks and the records the annual interest rate for each financial institution. The results of the samples are provided in the accompanying data set. Colin found an interest rate of 2.05% from a brick-and-mortar bank and an online bank. Calculate the z-score of 2.05% for each group using a TI-83, TI-83 Plus, or TI- 84 graphing calculator. Round the z-score to two decimal places. Brick-and-mortar Online 0.75 1.5 1 1.25 1.2 1.65 1 2.05 0.8 1.75 0.9 1.7 2.05 1.95 1.35 1.8 1.25 1.75 0.7 1.55 the z-score for brick-and-mortar bank is? the z-score for the online bank is?
Colin is a student in a consumer mathematics class creating a report on the annual interest rates of savings accounts. He randomly selects 10 brick-and-mortar bank and 10 online banks and the records the annual interest rate for each financial institution. The results of the samples are provided in the accompanying data set. Colin found an interest rate of 2.05% from a brick-and-mortar bank and an online bank. Calculate the z-score of 2.05% for each group using a TI-83, TI-83 Plus, or TI- 84 graphing calculator. Round the z-score to two decimal places.
Brick-and-mortar Online
0.75 1.5
1 1.25
1.2 1.65
1 2.05
0.8 1.75
0.9 1.7
2.05 1.95
1.35 1.8
1.25 1.75
0.7 1.55
the z-score for brick-and-mortar bank is?
the z-score for the online bank is?
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