The company wants to know whether there is any relationship between employee position in the company and months categories. (Significance level = 0.01)
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- What is meant by the sample space of an experiment?What is a sample space?In a winter of an epidemic flu, the parents of 2000 babies were surveyed by researchers at a well-known pharmaceutical company to determine if the company’s new medicine was effective after two days. Among 120 babies who had the flu and were given the medicine, 29 were cured within two days. Among 280 babies who had the flu but were not given the medicine, 56 recovered within two days. Is there any significant indication that supports the company’s claim of the effectiveness of the medicine? Use a significance level of 0.10
- In a winter of an epidemic flu, the parents of 2000 babies were surveyed by researchers at a well-known pharmaceutical company to determine if the company’s new medicine was effective after two days. Among 120 babies who had the flu and were given the medicine, 29 were cured within two days. Among 280 babies who had the flu but were not given the medicine, 56 recovered within two days. Is there any significant indication that supports the company’s claim of the effectiveness of the medicine? Use a significance level of 0.10 A. What type of Hypothesis Testing should be used? B. What are the null and alternative hypothesis? C. What are the significance level and type of test? D. What is the critical value? E. What is the standardized test statistic? F. What is the Statistical Decision?Test the hypothesis that the average number of complaints received per day when served by a Virtual agent is the same as the number of complaints received per day after not being served by a Virtual Agent at the 5% significance level.A health insurance company wants to determine if more than 25% of US residents have been to a hospital emergency room within the past year. It was found that in a sample of 1000 people, 28% indicated that they had been to an emergency room within the past year. With a significance level of 0.01, is there evidence to suggest that the proportion of US residents that have been to the emergency room in the past year is actually higher than 25%?
- . A random sample of 1000 Americans was taken, and these adults were asked if experience in politics was necessary for a candidate to be president of America. The following table presents the results of the survey . Test at a 1% significance level whether gender and opinions are related. Necessary Not Necessary No Opinion Men 260 220 70 Women 230 180 40 Test at a 1% significance level whether gender and opinions are related.Suppose 219 subjects are treated with a drug that is used to treat pain and 51 of them developed nausea. Use a .10 significance level to test the claim that more than 20% of users develop nausea.Suppose a study reported that the average personn watched 3.37 hours of television per day. a random sample of 15 people gave the number of hours of television watched per day shown below. at the 1% significance level, do the data provide sufficent evidence to conclude that the amount of television watched per day last year by the average person is greater than the value reported in the study? 2.2, 4.0, 4.7, 4.8, 4.2, 5.8, 4.0, 5.5, 2.3, 3.4, 5.1, 5.6, 2.2, 4.1, 2.3 what is the test statistic value for this problem? a.0.28 b.-38 c.none of the above d. 0.58 e.-4.295 f..04 g. 1.94 . the proper conclusion for this problem is? a. reject the null hypothesis we have sufficent evidence to prove the average number of hours people watch tv is more than 3.37 hours. b. Do not reject the null hypothesis we have sufficient evidence to prove the average number of hours of TV watched is greater than 3.37 hours c. Reject the null hypothesis and claim the average number of hours people watch TV is…
- Suppose a study reported that the average personn watched 3.37 hours of television per day. a random sample of 15 people gave the number of hours of television watched per day shown below. at the 1% significance level, do the data provide sufficent evidence to conclude that the amount of television watched per day last year by the average person is greater than the value reported in the study? 2.2, 4.0, 4.7, 4.8, 4.2, 5.8, 4.0, 5.5, 2.3, 3.4, 5.1, 5.6, 2.2, 4.1, 2.3 in constructing a 96% confidence interval for the parameter in this problem the proper value to use for the question is ? a. 0.8315 from the z chart table b.none of these c. -2.05 from the z chart d. 1.645 from the z chart e. 2.010 from the t chart 96% confidence interval for the parameter in the problem is? a.(.76, .87) b.(3.2632, 4.763594) c. (-4.07, 4.07) d. none e. (3.0269, .4.9997) f. (3.333, 4.6937) THANK YOUThe manager of a company wishes to study the number of hours the employees spend at their desktop computers. The manager selected a sample of six employees from three teams: A, B and C. At the 0.05 significance level, can the manager conclude there is a difference in the mean number of hours spent per week by team? Given the treatment sum of squares is 10 and total sum of squares is 40.Suppose 222 subjects are treated with a drug that is used to treat pain and 51 of them developed nausea. Use a 0.01 significance level to test the claim that more than 20% of users develop nausea. what is test statistics and P-value? What is concluded?