LMNP is a parallelogram. What additional information would prove that LMNP is a
rectangle?
y
M(2,4)
The length of LM is 45 and the length of MN is 5.
4.
2
O The slope of LP and MN is -2.
0 LM / PN
LP IPN
L(-4, 1)
N(3,2)
-54
2
3
4
5
-1
1
P(-3.-1)
-2
-3
-4
-5
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You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: