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Construct a confidence interval for p1 p2 at the given level of condence. x1: 395. n1 = 51?. x2 = 403. n2 = 551. 99%
Construct a confidence interval for p1 p2 at the given level of condence. x1: 395. n1 = 51?. x2 = 403. n2 = 551. 99% confidence The researchers are D% condent the difference between the two population proportions. p1 p2. is between El and D. (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.) In randomized. doubleblind clinical trials of a new vaccine. infants were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. Alter the second dose. 125 of 713 subjects in the experimental group (group 1] experienced fever as a side eect. After the second dose. 32 of 594 of the subjects in the control group (group 2] experienced fever as a side effect. Does the evidence suggest that a higher proportion ofsubjects in group 1 experienced fever as a side effect than subjects in group 2 at the o: = 0.10 level of signicance? Verify the model requirements. Select all that apply. . The sample size is less than 5% ofthe population size for each sample. . The sample size is more than 5% of the population size for each sample. . The samples are independent. A B C. The data come from a population that is normally distributed. D E - nlp1[1p])210andn2p2[1p2]21D : F. The samples are dependent. Determine the null and alternative hypotheses. H03 PI P2 H13 p1 P2 Find the test statistic for this hypothesis test. B {Round to two decimal places as needed.) Determine the P-value for this hypothesis test. B {Round to three decimal places as needed.) Interpret the Pvalue. If the population proportions are |:| one would expect a sample difference proportion |:| the one observed in about |:| out of 1000 repetitions of this experiment. (Round to the nearest integer as needed.)
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