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COVID-19 (novel corona virus) took the world by surprise in late 2019. By early 2020, nearly all countries worldwide were affected. Early reports from the U.S. Centers for Disease Control and Prevention (CDC) estimated that approximately 18% of those infected with the corona virus were asymptomatic (showed no symptoms of the virus). The rate of asymptomatic infections is important, since such people can unwittingly spread the virus to those around them. Suppose that 21.6% of a recent sample of 415 infected individuals were found to be asymptomatic. Using a significance level of 2%, test the hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is different than 18%. Use the p-value method. State the null and alternative hypothesis for this test. Ho:? H₁: ? ✓ Determine if this test is left-tailed, right-tailed, or two-tailed. O left-tailed O two-tailed Oright-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? The standard normal (2) distribution should be used 75°F H Partly cloudy

COVID-19 (novel corona virus) took the world by surprise in late 2019. By early 2020, nearly all countries worldwide were affected. Early reports from the U.S. Centers for Disease Control and Prevention (CDC) estimated that approximately 18% of those infected with the corona virus were asymptomatic (showed no symptoms of the virus). The rate of asymptomatic infections is important, since such people can unwittingly spread the virus to those around them. Suppose that 21.6% of a recent sample of 415 infected individuals were found to be asymptomatic. Using a significance level of 2%, test the hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is different than 18%. Use the p-value method. State the null and alternative hypothesis for this test. Ho:? H₁: ? ✓ Determine if this test is left-tailed, right-tailed, or two-tailed. O left-tailed O two-tailed Oright-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? The standard normal (2) distribution should be used 75°F H Partly cloudy

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter87: An Introduction To G- And M-codes For Cnc Programming
Section: Chapter Questions
Problem 10A
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COVID-19 (novel corona virus) took the world by surprise in late 2019. By early 2020, nearly all countries worldwide were affected. Early reports from the U.S. Centers for Disease Control and Prevention (CDC) estimated that approximately 18% of those infected with the corona virus were asymptomatic (showed no symptoms of the virus). The rate of asymptomatic infections is important, since such people can unwittingly spread the virus to those around them. Suppose that 21.6% of a recent sample of 415 infected individuals were found to be asymptomatic. Using a significance level of 2%, test the hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is different than 18%. Use the p-value method. State the null and alternative hypothesis for this test. Ho:? H₁: ? ✓ Determine if this test is left-tailed, right-tailed, or two-tailed. O left-tailed O two-tailed Oright-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? The standard normal (2) distribution should be used 75°F 49 Partly cloudy
Transcribed Image Text:COVID-19 (novel corona virus) took the world by surprise in late 2019. By early 2020, nearly all countries worldwide were affected. Early reports from the U.S. Centers for Disease Control and Prevention (CDC) estimated that approximately 18% of those infected with the corona virus were asymptomatic (showed no symptoms of the virus). The rate of asymptomatic infections is important, since such people can unwittingly spread the virus to those around them. Suppose that 21.6% of a recent sample of 415 infected individuals were found to be asymptomatic. Using a significance level of 2%, test the hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is different than 18%. Use the p-value method. State the null and alternative hypothesis for this test. Ho:? H₁: ? ✓ Determine if this test is left-tailed, right-tailed, or two-tailed. O left-tailed O two-tailed Oright-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? The standard normal (2) distribution should be used 75°F 49 Partly cloudy
The Students & UISLI IDULIVIT Shoutu de useu Determine the test statistic for the hypothesis test. Round the solution to two decimal places. Determine the p-value for the hypothesis test. Round the solution to four decimal places. Determine the appropriate conclusion for this hypothesis test. O The sample data provide sufficient evidence to reject the null hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is not equal to 0.18. O The sample data provide sufficient evidence to reject the alternative hypothesis that the proportion of all people who are infected with the corona virus and are asymptomatic is different than 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is likely equal to 0.18. O The sample data do not provide sufficient evidence to reject the null hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is likely equal to 0.18. O The sample data do not provide sufficient evidence to reject the alternative hypothesis that the proportion of all people who are infected with the corona virus and are asymptomatic is different than 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is likely not equal to 0.18. HH 75°F Partly cloudy
Transcribed Image Text:The Students & UISLI IDULIVIT Shoutu de useu Determine the test statistic for the hypothesis test. Round the solution to two decimal places. Determine the p-value for the hypothesis test. Round the solution to four decimal places. Determine the appropriate conclusion for this hypothesis test. O The sample data provide sufficient evidence to reject the null hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is not equal to 0.18. O The sample data provide sufficient evidence to reject the alternative hypothesis that the proportion of all people who are infected with the corona virus and are asymptomatic is different than 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is likely equal to 0.18. O The sample data do not provide sufficient evidence to reject the null hypothesis that the proportion of all people infected with the corona virus and are asymptomatic is 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is likely equal to 0.18. O The sample data do not provide sufficient evidence to reject the alternative hypothesis that the proportion of all people who are infected with the corona virus and are asymptomatic is different than 0.18 and thus we conclude that the proportion of people that are infected with corona virus and are asymptomatic is likely not equal to 0.18. HH 75°F Partly cloudy
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