Please Complete the questions
Exam #2 Introduction to Statistics Spring 202 1 Explain each solution. It is fine to work together on this exam. Due Saturday night at midnight. 1. Credit card companies keep track of our charges to see if there are any questionable activity. They do this since they are responsible for any incorrect charges. Ryan 's VISA card recorded the following 20 charges (in dollars) in September: 3. My high school class has already done a project. Here is a summary of all 30 students that turned in the project and their grades. Score Frequency 143 166 113 188 133 90 89 98 95 112 112 20 7 6 46 79 111 70 174 68 212 101 7.5 6 8 8 • What does VISA think is a typical charge for Ryan ? 8.5 7 9 3 • VISA will call Ryan if he makes a charge that is suspiciously high.Would a $208 charge bother VISA? Why? Use stats to answer. Abram has yet to give me the project since he has been ill and not at school. Do you think he will give me an ordinary (7.5 or lower) project? Assume normality. 2. The table o f data below is a sample of FICO credit scores with the interest rate (%) that a person with that credit score received from an accredited lender. FICO score Interest Rate 4. A Harris poll conducted during the week of October 9 -13 found that 844 of 1348 adult America ns 18 years or older believed that the government should impose some stricter isolation requirements during the flu outbreak to fight the pandemic 545 18.98 595 17.97 640 12.22 675 8.61 705 6.68 750 5.15 What percent of Americans believe that the government should impose some stricter isolation requirements In October in response to the pandemic? • Use statistics to predict what the FICO score would be if the interest rate was 9.1%. • Also, Melissa has a FICO score of 725. She was offered a 7% loan, and feels as though the bank is treating her harshly. Do you agree?
