The graph shows Felix's English scores versus the number of hours he studies: A graph titled Felixs English Scores shows Hours of Practice in a Week on x axis and English Scores on y axis. The x axis scale is shown from 0 to 5 at increments of 1 and the y axis scale is shown from 0 to 50 at increments of 5.The ordered pairs 0, 15 and 0.5, 20 and 1, 21 and 1.5, 25 and 2, 30 and 2.5, 32 and 3, 38 and 3.5, 42 and 4, 43 and 4.5, 45 and 5, 46 are shown on the graph. A straight line joins the ordered pairs 0, 15 and 5, 50.
What will Felix's English scores most likely be if he spends 7 hours a week studying English? (1 point)

64 points
72 points
84 points
92 points

(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?