Mathematics, 01.06.2021 08:40, jennaranelli05
Select the correct answer. Which system of equations is represented by this graph?
A. y= -2/5x - 4
y= -3x + 2
B. y= -2/5x + 2
y= -3x - 4
C. y= -5/2x - 4
y= -1/3x + 2
D. y= -5/2x + 2
y= -1/3x - 4
Answers: 3
Mathematics, 22.06.2019 04:00, SRTBANDIT6045
If y varies as x, and y=8 as x=4 what will be the value of y if x=2
Answers: 2
Mathematics, 22.06.2019 04:10, kernlife
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:
Answers: 2
Select the correct answer. Which system of equations is represented by this graph?
A. y= -2/5x - 4...
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