Math
A survey found that 83% of the men questioned preferred computer-assisted instruction to lecture and 75% of the women preferred computer-assisted instruction to lecture. There were 100 individuals in each sample. At α = 0.05, test the claim that there is no difference in the proportion of men and the proportion of women who favor computerassisted instruction over lecture. Find the 95% confidence interval for the difference of the two proportions
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Question 11 of 31 (1 point) 9.4 Section Exercise 15 (table) A recent random survey of...
Question 11 of 31 (1 point) 9.4 Section Exercise 15 (table) A recent random survey of 105 individuals in Michigan found that 75 drove to work alone. A similar survey of 120 commuters in New York found that 64 drivers drove alone to work. Find the 95% confidence interval for the difference in proportions. Use ê, for the proportion of Michigan drivers who drive alone to work. Round your answers to three decimal places. <P1-P2 Question 12 of 31 (1...
statistics
1. In the past, it was believed that 40% of women felt that men are basically selfish and self-centered. It is now claimed that this proportion has increased. A sample of 3,000 women shows that 1,260 agree with this statement. Can the statistician conclude that more than 40% of women felt that men are basically selfish and self-centered? Use ά = 0.05.2. The average number of heart beats per minute for a random sample of 64 patients was found to...
In a survey conducted in August, 2017, a random sample of 2,752 U.S. adults were asked...
In a survey conducted in August, 2017, a random sample of 2,752 U.S. adults were asked whether they had visited a public library in the previous 12 months. The results of this survey are shown in the two-way table below, stratified by gender. Conduct a hypothesis test on this data, using a 10% significance level, to test the claim that the true proportion of U.S. adult males who visited a public library in the previous 12 months differs from the...
A sample of college students was asked whether they would return the money if they found...
A sample of college students was asked whether they would return the money if they found a wallet on the street. Of the 93 women, 84 said "yes," and of the 75 men, 47 said "yes." Assume that these students represent all college students. (a) Find separate approximate 95% confidence intervals for the proportions of college women and college men who would say "yes" to this question. (Round the answers to three decimal places.) for women for men (b) Find...
A random sample of 400 men and 400 women was randomly selected and asked whether they...
A random sample of 400 men and 400 women was randomly selected and asked whether they planned to attend a concert in the next month. The results are listed below. Perform a homogeneity of proportions test to test the claim that the proportion of men who plan to attend a concert in the next month is the same as the proportion of women who plan to attend a concert in the next month. Use α = 0.05 Men Women Plan...
4 Chapter 7 Test B 16. [Objective: Calculate and interpret confidence intervals for a proportion) A random sample of 950 adult television viewers showed that 48% planned to watch sporting event X...
4 Chapter 7 Test B 16. [Objective: Calculate and interpret confidence intervals for a proportion) A random sample of 950 adult television viewers showed that 48% planned to watch sporting event X. The margin of error is 4 percentage points with a 95% confidence level. Does the confidence interval support the claim that the majority of adult television viewers plan to watch sporting event X? No; the confidence interval means that we are 95% confident that the population proportion of...
A recent opinion poll of funding for the arts asked, “Would you favor spending more federal...
A recent opinion poll of funding for the arts asked, “Would you
favor spending more federal tax money on the arts?” In a random
sample of 220 women from the U.S., 59 responded ‘yes.’ In a random
sample of 175 men from the U.S., 56 responded ‘yes.’ Use these data
as follows, to test whether there is any difference in the
proportion of men vs. women who favor spending more for the
arts:
c. From the output, report the test...
We will use this prompt for this and the next 1 question. A survey reported in...
We will use this prompt for this and the next 1 question. A survey reported in Time magazine included the question ‘‘Do you favor a federal law requiring a 15 day waiting period to purchase a gun?” Results from a random sample of US citizens showed that 318 of the 520 men who were surveyed supported this proposed law while 379 of the 460 women sampled said ‘‘yes”. Use this information to find a 90% confidence interval for the difference...
Suppose the Acme Drug Company develops a new drug, designed to prevent colds. The company states...
Suppose the Acme Drug Company develops a new drug, designed to prevent colds. The company states that the drug is equally effective for men and women. To test this claim, they choose a a simple random sample of 100 women and 200 men from a population of 100,000 volunteers. At the end of the study, 38% of the women caught a cold; and 51% of the men caught a cold. Based on these findings, can we reject the company's claim...
(2 points) A study on the proportion of women and men who follow a regular exercise...
(2 points) A study on the proportion of women and men who follow a regular exercise program, found a 95% confidence interval for the difference in proportions between women and men, (pw - PM), is (-0.022, 0.111). Does this study provide strong evidence of a gender-based difference in exercise? Explain your answer using the confidence interval 40.
Question 11 of 31 (1 point) 9.4 Section Exercise 15 (table) A recent random survey of 105 individuals in Michigan found that 75 drove to work alone. A similar survey of 120 commuters in New York found that 64 drivers drove alone to work. Find the 95% confidence interval for the difference in proportions. Use ê, for the proportion of Michigan drivers who drive alone to work. Round your answers to three decimal places. <P1-P2 Question 12 of 31 (1...
A sample of college students was asked whether they would return the money if they found a wallet on the street. Of the 93 women, 84 said "yes," and of the 75 men, 47 said "yes." Assume that these students represent all college students. (a) Find separate approximate 95% confidence intervals for the proportions of college women and college men who would say "yes" to this question. (Round the answers to three decimal places.) for women for men (b) Find...
4 Chapter 7 Test B 16. [Objective: Calculate and interpret confidence intervals for a proportion) A random sample of 950 adult television viewers showed that 48% planned to watch sporting event X. The margin of error is 4 percentage points with a 95% confidence level. Does the confidence interval support the claim that the majority of adult television viewers plan to watch sporting event X? No; the confidence interval means that we are 95% confident that the population proportion of...
A recent opinion poll of funding for the arts asked, “Would you
favor spending more federal tax money on the arts?” In a random
sample of 220 women from the U.S., 59 responded ‘yes.’ In a random
sample of 175 men from the U.S., 56 responded ‘yes.’ Use these data
as follows, to test whether there is any difference in the
proportion of men vs. women who favor spending more for the
arts:
c. From the output, report the test...
(2 points) A study on the proportion of women and men who follow a regular exercise program, found a 95% confidence interval for the difference in proportions between women and men, (pw - PM), is (-0.022, 0.111). Does this study provide strong evidence of a gender-based difference in exercise? Explain your answer using the confidence interval 40.
Most questions answered within 3 hours.
-
Two waves are traveling on a string, one with a wave function,
y1 = 0.05sin(4x -...
asked 1 minute ago -
Develop an ideal customer profile for three Dell Customer
groups( a supplier, a global business, and...
asked 4 minutes ago -
Suppose, for any future year, the probability its October rain
is more than 3 inches is...
asked 8 minutes ago -
Solve the following systems of linear equations using
substitution 12p + 3q = 15 6q +...
asked 15 minutes ago -
Prof. D went grocery shopping and purchased one dozen eggs and
one pound of flour (all...
asked 22 minutes ago -
If
somehow loop of Henle were removed - that is if the proximal tubule
was connected...
asked 23 minutes ago -
Add 1ml of 0.18M of HCl (aq) to 1ml of 0.2M of [Ag(NH3)2]Br
(aq).
Write the...
asked 30 minutes ago -
1. Smoke detectors use Am-241, an alpha emitter, to detect smoke
particles. A parent is concerned...
asked 34 minutes ago -
Scenario: Web application developed to capture customers
demographic and financial information for filling their taxes. This...
asked 38 minutes ago -
Which of the following statements are true?
1. Glass is mostly silicon dioxide and so when...
asked 1 hour ago -
Korman Company has the following securities in its portfolio of
equity securities on December 31, 2018:...
asked 1 hour ago -
Using the 12th edition of Language Awareness,
complete the following assignment:
After reading Akiba Solomon's "Thugs....
asked 1 hour ago