ECON1151 Lecture Notes - Society Of Jesus
22 Jan 2014
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90% confidence intervals: for cash is . 67-. 48, for debit is . 62-. 76, for. 95% confidence intervals: for cash is . 09-. 06, for debit is . 80-. 58, for. 99% confidence intervals: for cash is . 91-. 24, for debit is . 13-. 25, for. Credit is . 90-. 86: these confidence intervals do provide evidence that there is a difference between the types of payment because the data indicates that if the price is between and , then. 90% of the customers will use cash to purchase the item. They will use debit or credit if the price is approximately between and . Therefore, regardless of the confidence intervals, if the price is more than , the data indicates that there is a high chance that the customer will use either their credit or debit card to purchase the item.
