(c) Find the standardized test statistic z.(Round to two decimal places as needed.)(d) Decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision in the context of the original claim.the null hypothesis. Thereenough evidence tothe researcher's claim. An education researcher claims that at most 7% of working college students are employed as teachers or teaching assistants. In a random sample of 200 working college students, 8% are employed as teachers or teaching assistants. At a = 0.10, is there enough evidence to reject the researcher's claim? Complete parts (a)through (e) below.(a) Identify the claim and state Ho and H3Identify 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.% of working college students are employed as teachers or teaching assistants.O B. At most % of working college students are employed as teachers or teaching assistants.O C. The percentage of working college students who are employed as teachers or teaching assistants is not%.O D. More than % of working college students are employed as teachers or teaching assistants.Let p be the population proportion of successes, where a success is a working college student who is employed as a teacher or teaching assistant. State H, and Ha. Select the correct choice below and fill in the answer boxes to complete your choice.(Round to two decimal places as needed.)O A. Ho: p#О В. Но: р2OC. Ho: p=Ha: p=Ha: p<O D. Ho: p>O E. Ho: p<O F. Ho: psH3: psH3: p2H3: p>(b) Find the critical value(s) and identify the rejection region(s).Identify the critical value(s) for this test.Zo =D(Round to two decimal places as needed. Use a comma to separate answers as needed.)Identify the rejection region(s). Select the correct choice below and fill in the answer box(es) to complete your choice.(Round to two decimal places as needed.)O A. The rejection region is z>O B. The rejection regions are z<and z>OC. The rejection region is z<O D. The rejection region is

An education researcher claims that at most 7% of working college students are employed as teachers or teaching assistants. In a random sample of 200 working college students, 8% are employed as teachers or teaching assistants. At a= 0.10, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below.

An education researcher claims that at most 7% of working college students are employed as teachers or teaching assistants. In a random sample of 200 working college students, 8% are employed as teachers or teaching assistants. At a= 0.10, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Similar questions

Researchers interested in lead exposure due to car exhaust sampled the blood of 52 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a primarily urban environment. The blood samples of these officers had an average lead concentration of 124.32 µg/l and an SD of 37.74 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level concentration of 35 µg/l. Write down the hypotheses that would be appropriate for testing if the police officers appear to have been exposed to a higher concentration of lead. Explicitly state and check all conditions necessary for inference on these data. Test the hypothesis that the downtown police officers have a higher lead exposure than the group in the previous study. Interpret your results in context. Based on your preceding result, without performing a calculation, would a 99% confidence interval for the average blood concentration…
A research center claims that more than 29% of employees in a certain country have changed jobs in the past three years. In a random sample of 220 people from that country, 77 have changed jobs in the past three years. At alphaαequals=0.10, is there enough evidence to support the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Upper H 0H0 and Upper H Subscript aHa. 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.) A. At most nothing% of employees in the country have changed jobs in the past three years. B. More than nothing% of employees in the country have changed jobs in the past three years. C. The percentage of employees in the country who have changed jobs in the past three years is not nothing%. D. nothing% of employees in the country have changed jobs in the past three years.…
A research center claims that more than 29% of employees in a certain country have changed jobs in the past three years. In a random sample of 220 people from that country, 77 have changed jobs in the past three years. At alphaαequals=0.10, is there enough evidence to support the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state Upper H 0H0 and Upper H Subscript aHa. 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.) A. At most nothing% of employees in the country have changed jobs in the past three years. B. More than nothing% of employees in the country have changed jobs in the past three years. C. The percentage of employees in the country who have changed jobs in the past three years is not nothing%. D. nothing% of employees in the country have changed jobs in the past three years.…
The worldwide market share for a web browser was 20.1% in a recent month. Suppose that a sample of 200 random students at a certain university finds that 50 use the browser. At the 0.01 level of significance, is there evidence that the market share for the web browser at the university is greater than the worldwide market share of 20.1%? Determine the null and alternative hypotheses. A.H0: P≥0.201; H1: P<0.201 B.H0: P=0.201; H1: P≠0.201 C. H0: P≠0.201; H1: P=0.201 D. H0: P≤0.201; H1: P>0.201 ZStat=__ (Round to two decimal places) p-value=____ __A__ the null hypothesis. There is __B__ evidence to conclude that the market share at teh university is __C__ the worldwide market share of 20.1%. A: Reject or do not reject B: insufficient or sufficient C: at least, less than, equal to, at most, not equal to, greater than
A law enforcement agent believes that at least 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. A sample of 84 drivers who were stopped for speeding on a Saturday night was taken. Seventy-five percent of the drivers in the sample were under the influence of alcohol. (a) State the null and alternative hypotheses. (Enter != for ≠ as needed.) H0: Ha: (b) Compute the test statistic. (c) Using the p-value approach, test the hypotheses at the 0.05 level of significance. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Do not reject H0. There is insufficient evidence to conclude that less than 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol.Do not reject H0. There is sufficient evidence to conclude that less than 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. Reject H0. There…