Session
Mathematics
6
A librarian is reading a book during her lunch breaks. She recorded some of
reading rates over the past three days in this table.
Reading Rates
Day
Number
of
Pages
Read
Time
(hour)
Rate
(pages
per
hour)
Monday
| 81
Tuesday
NI-
60
Wednesday
80
40
Which of the following completed tables correctly shows her reading rates?

Find the value of x in the diagram below. select the best answer from the choices provided

(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?

What is the perimeter of an equilateral triangle if each side is (x+3)?