A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%. If 139 out of a random sample of 235 college students expressed an intent to vote, can we reject the alde's estimate at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) state the null hypothesis H, and the alternative hypothesis H1. Họ :0 H :0

A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%. If 139 out of a random sample of 235 college students expressed an intent to vote, can we reject the alde's estimate at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) state the null hypothesis H, and the alternative hypothesis H1. Họ :0 H :0

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The toll plaza on Route 1 in Dover has four tollbooths open to all vehicles. Ms. Timlin conducted a chi-square goodness of fit test to see if all of the booths are used in equally. A chi-square value of 23.4 was calculated, resulting in a p-value of 0.006. Which of the following is correct? a. There is sufficient evidence to suggest that the tollbooths are not used in equal proportions. Selected:b. There is sufficient evidence to suggest that the tollbooths are used in equal proportions.This answer is incorrect. c. The tollbooths are used in equal proportions. d. There is insufficient evidence to suggest that the tollbooths are used in equal proportions. e. There is insufficient evidence to suggest that the tollbooths are not used in equal proportions.
Statistics Question
In 1995, it was determined that 78% of US citizens supported a ban on household aerosols. Thinking that this proportion may have changed over the past few decades, a sample will be taken to test if a change has occurred. In a SRS of 400 citizens taken this year, 332 supported the ban. Determine the value of the appropriate test statistic to perform this test. Round to 3 decimal places.
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 38 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 94 of the 111 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 #P2 Hy:P1 =P2 O B. Ho: P1 =P2 H1: P1 P2 H1: P1 #P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? the null hypothesis. There sufficient evidence to support the claim that echinacea…
An education researcher claims that 59% of college students work year-round. In a random sample of 600 college students, 354 say they work year-round. At a=0.10, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.). OA. At least % of college students work year-round. OB. At most % of college students work year-round OC. The percentage of college students who work year-round is not % OD.% of college students work year-round Let p be the population proportion of successes, where a success is a college student who works year-round. State Ho and H₂ Select the correct choice below and fill in the answer boxes to complete your choice (Round to two decimal places as needed.). OA. Ho: P> Ha ps OD. Ho P= H₂: p (b) Find the critical value(s) and identify the rejection region(s) Identify…
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 508 randomly selected adults showed that 55% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.) --
Many college and university students obtain summer jobs. A professor wanted to determine whether students in different degree programs earn different amounts. She randomly selected five students in each of the 4 university programs and asked them to report what they earned the previous summer (in thousands of dollars). The following partially filled-in ANOVA table was obtained. Fill-in the rest of the table. (Use exact values for df and round all other numbers to 2 decimal places, if needed.) Source df SS MS F-Stat Treatments 11.0 Error Total 23.7
A humane society claims that less than 62% of households in a certain country own a pet. In a random sample of 500 households in that country, 290 say they own a pet. At a = 0.05, is there enough evidence to support the society's claim? Complete parts (a) through (c) below. (a) Identify the claim and state Ho and H Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. Less than % of households in the country own a pet. O B. % of households in the country own a pet. O C. The percentage households in the country that own a pet is not %. O D. More than % of households in the country own a pet. Let p be the population proportion of successes, where a success is a household in the country that owns a pet. State Ho and H.. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) CO A. Hnipz O B. Hnip= OC.…
A foundation conducted a survey of physicians' attitude about health care reform, calling the report "a survey of 100,000 physicians." The survey was sent to 100,000 randomly selected physicians practicing in the United States: 38,000 via post-office mail and 62,000 via email. A total of 2,474 completed surveys were received. What is the rate of nonresponse for this survey? (Round your answer to two decimal places.)
A survey of 2314 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 428have donated blood in the past two years. (a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years. p=____? (Round to three decimal places as needed.)
A survey showed that 35% of human resource professionals are at companies that rejected job candidates because of information found on their social media. If 24 human resource professionals are randomly selected, would 13 be a significantly high number to be at companies that rejected job candidates because of information found on their social media? Why or why not? Select the correct choice below and fill in the answer box within your choice. (Round to four decimal places as needed.) A. Yes, 13 would be significantly high because the probability of 13 or more is B. Yes, 13 would be significantly high because the probability of 13 or more is O c. No, 13 would not be significantly high because the probability of 13 or more is D. No, 13 would not be significantly high because the probability of 13 or more is , which is not low. which is low. which is not low. which is low.
How do I do this on a ti84 plus? Disregard the writing on the paper.