(1) 1 success in 3 trials with p 0.7: (2) 1 success in 3 trials with p = 0.4: (3) 3 successes in 5 trials withp = : 4
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- 10 . you wish to test the following claim (HaHa) at a significance level of α=0.01. Ho:p1=p2Ho:p1=p2 Ha:p1≠p2Ha:p1≠p2You obtain a sample from the first population with 199 successes and 106 failures. You obtain a sample from the second population with 365 successes and 246 failures. test statistic = [three decimal accuracy] p-value = [four decimal accuracy] The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null hypothesis fail to reject the null hypothesis As such, the final conclusion is that... There is sufficient evidence to support that the first population proportion is not equal to the second population proportion. There is not sufficient evidence to support that the first population proportion is not equal to the second population proportion.A researcher conducts a study comparing two treatments and reports the t statistic as t(25) = 2.10. A) If the study used between-subjects design, how many individuals participated in the entire study? B) If the study used within-subjects design, how many individuals participated in the entire study? C) Using a two-tailed test with α = .05, is there a significant difference between the two treatments?a)What is tcrit for a two sample, one tailed t-test, with n=22, n= 14 and α=0.05? b)What is tcrit for a two sample, two tailed t-test, with n=10, n= 18 and α=0.01?
- After conducting an ANOVA, you end up with the following results: F(2, 27) = 8.80, p < .05. How many groups were included in your analysis? Enter your answer as a whole number with no decimal places (i.e., 10, not 10.01, not 10.1, not 10.001).10.STATISTICAL INFERENCEQuesdtion 3 d8. A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims that more than 95% of patients taking the drug are healed within 8 weeks. In clinical trials, 216 of 225 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the a = 0.1 level of significance. Because npo (1- Po) (1) 10, the sample size is (2) 5% of the %D population size, and the sample (3) satisfied. the requirements for testing the hypothesis (4) (Round to one decimal place as needed.) What are the null and alternative hypotheses? Но: (5) (6) versus H1: (7) (8) (Type integers or decimals. Do not round.) Find the test statistic, zo. Zo = (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Choose the correct conclusion below. O A. Do not reject the null hypothesis. There is sufficient evidence to conclude more than 95%…
- An urban comminity would like to show that the incidence of breast cancer is higher in their area than in a nearby rural area. If it is found that 20 out of 200 adult women in the urban comminity have breast cancer and 20 of 300 adult women in the rural community have breast cancer, can we conclude at the 0.025 level of 1 significance that breast cancer is more prevalent in the urban comminity?25. An experimenter has prepared a drug that he claims has side effects in 25% or less of those people taking it (considerably less than the current medication). In an attempt to verify the claim, his prescribed drug was administered to 24 patients & Y, the # of patients having side effects by the drug, was observed. If at most 9 patients have side effects with this drug the claim is accepted (as valid). Find P (Type II Error) when p = 0.75 0.000112 0.000523 O 0.595599 None of the other answers are correct. O 0.999888 O 0.999477a) What is Fcrit for a one way ANOVA with 5 treatments and 6 replicates per treatment at α=0.05? b)What is Fcrit for a one way ANOVA with 3 treatments and 5 replicates per treatment at α=0.01?
- An SRS of 190 flights of a large airline (call this airline 1) showed that 160 were on time. An SRS of 190 flights of another large airline (call this airline 2) showed that 172 were on time. Let p1 and P2 be the proportion of all flights that are on time for these two respective airlines. Is airline 2 more reliable? In other words, does airline 1 have a lower on-time rate compared to airline 2? Carry out an appropriate test using a significance level of 0.02. (a) What are the null and alternative hypotheses? Но: р < : 0.0 На р 0.0 (b) What is the test statistic? (Round your answer to 2 decimal places, if needed.) (c) Using the statistical table, what is the p-value? (Round your answer to 4 decimal places, if needed.) (d) Based on the p-value, fail to reject + the null hypothesis.3.) In a particular epidemic disease, 400 individuals were surveyed by a well-established pharmaceutical company to determine if the company’s new vaccine was effective after 4 months. Among the 120 individuals who had that disease and were given the shot, 29 were cured and achieved immunity after 4 months. Among 280 individuals who had the disease but were not given the shot, 56 were cured and achieved immunity after 4 months. Is there enough statistical evidence to support the company’s claim of the effectiveness of the vaccine?Are couples that live together before they get married just as likely to end up divorced within five years of marriage compared to couples that live apart before they get married? 268 of the 674 couples from the study who lived together before they got married were divorced within five years of marriage. 173 of the 405 couples from the study who lived apart before they got married were divorced within five years of marriage. What can be concluded at the = 0.05 level of significance? For this study, we should use Select an answer z-test for a population proportion t-test for a population mean t-test for the difference between two independent population means z-test for the difference between two population proportions t-test for the difference between two dependent population means The null and alternative hypotheses would be: Select an answer μ1 p1 Select an answer ≠ > < = Select an answer p2 μ2 Select an answer μ1 p1 Select an answer < = > ≠ Select…
