Which statement is true? The graph shows the relationship between the number
of hours that Michelle has been driving and the distance
that she has left to travel to get to her destination.
It took Michelle 6 hours to complete the trip.
Distance Remaining over Time
For each hour that Michelle drove, she traveled an
additional 50 miles.
ТУ
400
5350
300
* In the first 6 hours, Michelle had traveled a total of
50 miles
In the first 3 hours, Michelle had traveled a total of
200 miles
250
Miles to Destination
200
150
100
50
-1
х
1 2 3 4 5 6 7 8
Time (in hours)

(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?