Mathematics, 04.11.2020 21:00 aderahd7352
A surveyor randomly interviewed 34,572 people who live in Scotland to gather information on whether national healthcare is accomplishing its goals.
Part A: What are the population and sample in this survey? (4 points)
Part B: The survey found that 70% of smokers and 87% of non-smokers visited a family doctor at least once in the past year. Do you think these approximations of the sample are close to approximations of the entire population? Explain. (6 points)
Answers: 2
Mathematics, 21.06.2019 16:40, cthompson1107
The table shows the total distance that myra runs over different time periods. which describes myra’s distance as time increases? increasing decreasing zero constant
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Mathematics, 22.06.2019 01:50, salsa456
Anew movie is released each year for 14 years to go along with a popular book series. each movie is 2 minutes longer than the last to go along with a plot twist. the first movie is 70 minutes long. use an arithmetic series formula to determine the total length of all 14 movies
Answers: 3
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
A surveyor randomly interviewed 34,572 people who live in Scotland to gather information on whether...
Mathematics, 06.11.2019 19:31
Mathematics, 06.11.2019 19:31