Suppose you take a sample of 50 random people with COVID-19 and find that 30 of...

Suppose you take a sample of 50 random people with COVID-19 and find that 30 of them are asymptomatic (show no symptoms), . Suppose you want to test FOR whether or not the percent of individuals with COVID-19 who are asymptomatic is greater than 50%.

What is the null and alternative hypotheses for this test?
What are the critical values for conducting the hypothesis test at the 10%, 5%, and 1% significance levels?
What is the test statistic for the above hypothesis test, and what is the p-value?
At what significance levels out of 10, 5 and 1% could you reject the null hypothesis, and why?

Solutions

Expert Solution

The test is conducted at 1%, 5% and 10% level of significance respectively.

The test is rejected at 10% level of significance, because the p value is less than level of significance.

Dear student,
I am waiting for your feedback. I have given my 100% to solve your queries. If you satisfied with my answer then please please like this.
Thank You

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Suppose you take a random sample of 30 individuals from a large population. For this sample,...

Suppose you take a random sample of 30 individuals from a large population. For this sample, the sample mean is 4.2 and sample variance is 49. You wish to estimate the unknown population mean µ. (a) Calculate a 90% confidence interval for µ. (b) Calculate a 95% confidence interval for µ. (c) Based on (a) and (b), comment on what happens to the width of a confidence interval (increase/decrease) when you increase your confidence level. (d) Suppose your sample size...

Suppose that researchers study a sample of 50 people and find that 10 are left-handed. (a)...

Suppose that researchers study a sample of 50 people and find that 10 are left-handed. (a) Find a 95% confidence interval for the population proportion that is left-handed. (b) What would the confidence interval be if the researchers used the Wilson value ~p instead? (c) Suppose that an investigator tests the null hypothesis that the population proportion is 18% against the alternative that it is less than that. If = 0:05 then nd the critical value ^pc. Using ^p as...

Suppose that researchers study a sample of 50 people and find that 10 are left-handed. (a)...

Suppose that researchers study a sample of 50 people and find that 10 are left-handed. (a) Find a 95% confidence interval for the population proportion that is left-handed. (b) What would the confidence interval be if the researchers used the Wilson value ̃p instead? (c) Suppose that an investigator tests the null hypothesis that the population proportion is 18% against the alternative that it is less than that. If α = 0.05 then find the critical value ˆpc. Using ˆp...

53% of people beleive in love at first sight. Suppose we take a random sample of...

53% of people beleive in love at first sight. Suppose we take a random sample of 200 people. What is the probability that 1 a ) Exactly 95 of them beleive in love at first sight 1 b ) 120 or more of them beleive in love at first sight 1 c) Fewer than 90 of them beleive in love at first sight

53% of people believe in love at first sight. Suppose we take a random sample of...

53% of people believe in love at first sight. Suppose we take a random sample of 550 people. What is the probability that: 1. Exactly 295 of them believe in love at first sight? 2. 300 or more of them believe in love at first sight? 3. Fewer than 250 of them believe in love at first sight?

5. Suppose that researchers study a sample of 50 people and find that 10 are left-handed....

5. Suppose that researchers study a sample of 50 people and find that 10 are left-handed. (a) Find a 95% confidence interval for the population proportion that is left-handed. (b) What would the confidence interval be if the researchers used the Wilson value p ̃ instead? (c) Suppose that an investigator tests the null hypothesis that the population proportion is 18% against the alternative that it is less than that. If α = 0.05 then find the critical value pˆc....

5. Suppose that researchers study a sample of 50 people and find that 10 are left-handed....

5. Suppose that researchers study a sample of 50 people and find that 10 are left-handed. (a) Find a 95% confidence interval for the population proportion that is left-handed. (b) What would the confidence interval be if the researchers used the Wilson value ̃p instead? (c) Suppose that an investigator tests the null hypothesis that the population proportion is 18% against the alternative that it is less than that. If α = 0.05 then find the critical value ˆpc. Using...

Suppose we take a poll (random sample) of 3992 students classified as Juniors and find that...

Suppose we take a poll (random sample) of 3992 students classified as Juniors and find that 2818 of them believe that they will find a job immediately after graduation. What is the 99% confidence interval for the proportion of Juniors who believe that they will, immediately, be employed after graduation. (0.694, 0.718) (0.687, 0.724) (0.699, 0.713) (0.692, 0.72)

Suppose we take a poll (random sample) of 3907 students classified as Juniors and find that...

Suppose we take a poll (random sample) of 3907 students classified as Juniors and find that 2904 of them believe that they will find a job immediately after graduation. What is the 99% confidence interval for the proportion of GSU Juniors who believe that they will, immediately, be employed after graduation. (0.725, 0.761) (0.732, 0.755) (0.73, 0.757) (0.736, 0.75)

You take a random sample of 78 houses and find that 54 of them plan to...

You take a random sample of 78 houses and find that 54 of them plan to give out chocolate A- Give the margin of error and the 95% confidence interval for the proportions of candies that are chocolate. B- We want to still keep a 95% conference interval, but we want the interval to be narrower, what can be done? why does it work?

Subjects