Mathematics, 30.10.2020 22:10 arivalen
The United States federal government shutdown of 2018β2019 occurred
from December 22, 2018 until January 25, 2019, a span of 35 days. A Survey USA poll of 614 randomly sampled Americans during this time period reported that 48% of those who make less than $40,000 per year and 55% of those who make $40,000 or more per year said the government shutdown has not at all affected them personally. A 95% confidence interval for (p<40K β pβ₯40K), where p is the proportion of those who said the government shutdown has not at all affected them personally, is (-0.16, 0.02). Based on this information, determine if the following statements are true or false, and explain your reasoning if you identify the statement as false.
(a) At the 5% significance level, the data provide convincing evidence of a real difference in the proportion who are not affected personally between Americans who make less than $40,000 annually and Americans
who make $40,000 annually.
(b) We are 95% confident that 16% more to 2% fewer Americans who make less than $40,000 per year are not at all personally affected by the government shutdown compared to those who make $40,000 or more
per year.
(c) A 90% confidence interval for (p<40K β pβ₯40K) would be wider than the (β0.16, 0.02) interval.
(d) A 95% confidence interval for (pβ₯40K β p<40K) is (-0.02, 0.16).
Answers: 3
Mathematics, 21.06.2019 14:10
How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?
Answers: 1
Mathematics, 21.06.2019 21:00
Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)
Answers: 2
Mathematics, 22.06.2019 02:50
How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?
Answers: 1
The United States federal government shutdown of 2018β2019 occurred
from December 22, 2018 until Ja...
Mathematics, 12.11.2020 22:10
Spanish, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10
Arts, 12.11.2020 22:10
Physics, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10
Advanced Placement (AP), 12.11.2020 22:10
Social Studies, 12.11.2020 22:10
Mathematics, 12.11.2020 22:10