Scene #1 The Rock of Gibraltar -- Mediterranean Sea
On a yacht traveling into the Mediterranean Sea, 3D XYZ illegally netted 1000 stingrays.
Investigators are not sure how these stingrays will play into the World Conquering Device.
I'm ready to ransack countries along my #1 sea! Unless you can do math in 3D you won't catch me! On
my trip, I bought a model of my favorite rock, The Rock of Gibraltar, but is it to scale?
THE REAL DEAL
THE SCALE MODEL
426
WD 78
纪
BOC
W 008
6.5 km
Are these figures similar,
congruent or neither?
NEITHER
CONGRUENT
SIMILAR
A = 11
X = 96
o = -37
Scene
#2
Duramide
Saa

(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?