subject
Mathematics, 06.04.2020 16:57 jeffreystarks

A Gallup poll conducted in November 2010 found that 493 of 1050 adult Americans believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage.
(a) Obtain a point estimate for the proportion of adult Americans who believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage.

(b) Verify that the requirements for constructing a confidence interval for p are satisfied.

(c) Construct a 95% confidence interval for the proportion of adult Americans who believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage.

(d) Construct a 99% confidence interval for the proportion of adult Americans who believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage.

(e) What is the effect of increasing the level of confidence on the width of the interval?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 18:00
Negative 5 1/12 + negative 4 1/4 + 6 3/4
Answers: 1
question
Mathematics, 21.06.2019 18:00
Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given
Answers: 1
question
Mathematics, 21.06.2019 19:20
Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a
Answers: 2
question
Mathematics, 21.06.2019 21:00
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
You know the right answer?
A Gallup poll conducted in November 2010 found that 493 of 1050 adult Americans believe it is the re...
Questions
question
Mathematics, 28.09.2020 23:01
question
Mathematics, 28.09.2020 23:01
question
Mathematics, 28.09.2020 23:01