Mathematics, 31.08.2021 01:50 lisagrimmett3
If two variables have a proportional relationship, we can draw important conclusions from ratios without knowing the value of the proportionality constant.
a. True
b. False
Answers: 3
Mathematics, 22.06.2019 01:50
Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of ฮผ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307
Answers: 1
Mathematics, 22.06.2019 03:30
The bottom of a vase is a square.each side measury y+11 units.the square has a perimeter of 55 units what is the value of y?
Answers: 2
Mathematics, 22.06.2019 04:10
The graph represents this system of equations: 2x + y = 3 2x - 5y = 15 what is the solution to the system of equations represented by the graph? (0, -3) (1,1) (1.5,0) (2.5, -2)
Answers: 1
Mathematics, 22.06.2019 04:10
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
If two variables have a proportional relationship, we can draw important conclusions from ratios wit...
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