H3. 3tatIStiCs (1Teschptive) Objectives Reed 08:Pretest o8:Hypothesis Testing 13. Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (u, p, o) for the indicated parameter. A psychologist claims that more than 4.1% of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness. O Ho: p > 4.1% H1: p < 4.1% O Ho: p = 4.1% H1: p > 4.1% %3D O Ho: p < 4.1% H1: p > 4.1% Ho: p = 4.1% H1: p < 4.1% Description 13 of 25 Submit
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- For students who first enrolled in two-year public institutions in a recent semester, the proportion who earned a bachelor's degree within six years was 0.389. The president of a certain junior college believes that the proportion of students who enroll in her institution have a lower completion rate. (a) State the null and alternative hypotheses in words. (b) State the null and alternative hypotheses symbolically. (c) Explain what it would mean to make a Type I error. (d) Explain what it would mean to make a Type II error.For students who first enrolled in two-year public institutions in a recent semester, the proportion who earned a bachelor's degree within six years was 0.389. The president of a certain junior college believes that the proportion of students who enroll in her institution have a lower completion rate. (a) State the null and alternative hypotheses in words. (b) State the null and alternative hypotheses symbolically. (c) Explain what it would mean to make a Type I error. (d) Explain what it would mean to make a Type II error. Question content area bottom Part 1 (a) State the null hypothesis in words. Choose the correct answer below. A. Among students who enroll at the certain junior college, the completion rate is greater than 0.389. B. Among students who first enroll in two-year public institutions, the completion rate is 0.389. C. Among students who enroll at the certain junior college, the completion rate is less than 0.389. D.…A medical researcher says that less than 79% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 75% think that healthy children should be required to be vaccinated. At α=0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. 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.) Fill the percentage on the correct answer A. More than % of adults in the country think that healthy children should be required to be vaccinated. B. % of adults in the country think that healthy children should be required to be vaccinated. C. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not %. D. Less than…
- A medical researcher says that less than 85% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 83% think that healthy children should be required to be vaccinated. At α=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. 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. Less than enter your response here% of adults in the country think that healthy children should be required to be vaccinated. B. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not enter your response here%. C. More than enter your response here% of adults in the country think that healthy children…A medical researcher says that less than 86% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 84% think that healthy children should be required to be vaccinated. At α=0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. 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. Less than 8686% of adults in the country think that healthy children should be required to be vaccinated. B. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not nothing%. C. nothing% of adults in the country think that healthy children should be required to be vaccinated. D. More than nothing%…A) The p− value is 0.7580. Reject the null hypothesis H0. The social media content associate has sufficient evidence that the average number of social media posts per day that helps to build an audience is different than 3 daily posts. B)The p− value is 0.2420. Reject the null hypothesis H0. The social media content associate has sufficient evidence that the average number of social media posts per day that helps to build an audience is different than 3 daily posts. C)The p− value is 0.7580. Fail to reject the null hypothesis H0. The social media content associate does NOT have sufficient evidence that the average number of social media posts per day that helps to build an audience is different than 3 daily posts. D)The p− value is 0.2420. Fail to reject the null hypothesis H0. The social media content associate does NOT have sufficient evidence that the average number of social media posts per day that helps to build an audience is different than 3 daily posts.
- The clinical trial for a new drug results in a p-value of 0.045. What decision should the scientists make? A. We accept the alternative hypothesis that the drug does work. B. We reject the null hypothesis that the drug doesn't work. C. We accept the null hypothesis that the drug doesn't work. D. We reject the alternative hypothesis that the drug does work.A medical researcher says that less than 76% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 500 adults in that country, 73% think that healthy children should be required to be vaccinated. At α=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. 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. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not nothing%. B. Less than 7676% of adults in the country think that healthy children should be required to be vaccinated. Your answer is correct. C. nothing% of adults in the country think that healthy children should be required to be vaccinated. D. More…For students who first enrolled in two year public institutions in a recent semester, the proportion who earned a bachelor's degree within six years was 0.389. The president of a certain college believes that the proportion of students who enroll in her institution have a higher completion rate. (a) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. (c) Explain what it would mean to make a Type II error. (a) State the hypotheses. H0: ▼ ▼ nothing H1: ▼ ▼ nothing (Type integers or decimals. Do not round.)
- Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (μ, ρ, σ) for the indicated parameter. A psychologist claims that more than 5.8 percent of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness. Group of answer choices H0 : p = 5.8%H1 : p ≤ 5.8% H0 : p = 5.8%H1 : p < 5.8% H0 : p = 5.8%H1 : p > 5.8% H0 : p = 5.8%H1 : p ≥ 5.8%A researcher believes that more than half of college students average less than 6 hours of sleep per night during the week. Suppose she collected data to test her belief and found a p-value < 0.0001. Fill in the information for her hypothesis test below. Type of test: a. Left-tail b. Right-tail c. Two-tailSolve problems involving the test of hypothesis on the population proportion. Question: A veterinarian claims that at least 75% of the residents of BarangayNuestra Senora de Visitacion in Laoag City have household pets. To testthis claim, Mario, a researcher, randomly selected a sample of 110residents and found that 88 of them do have household pets. Is thereenough evidence to reject the null hypothesis H0 at α = 0.05? Claim: Evidence: Reasoning: