Show wil wuir. uclude all units lor full credil.
the table below shows the population of a high school. answer the following questions,
year
2010
population graph the data by hundreds.
2404
if population is 2725 then the point would be at 27.25
population is 2725 w
1.15.28 +
2086
1873
a 1.11
2011
2012
2013
2014
2015
1.18
1638
1381
1195
population (by hundreds)
1
1
2
3
4
5
6
7
8
9
10
11 12 13 14 1
years
1. write and graph the model rounded to 3 decimal places:
2. is this a growth or a decay? _decay
growth/decay factor:
3. what is the percent increase or decrease?
4. what is the average rate of growth or decline in the population per year for the 5 year
period? show work.
5. what will be the population for 2020 to the nearest whole number?
6. when will the population be 500 students to 2 decimal places?
7. how well does your model fit the data? what year does your model show to be the least accuate for the
data? explain

(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?