The new study also carried out a test to determine whether the population proportion of unvaccinated school children contracting winter flu was higher than the population proportion of vaccinated school children. The Z test statistic to test this belief is found to be 1.874. The corresponding p-value is 0.0305 0.1212 0.3036 0.7724
Do question 7,8 and 9 only
The new study also carried out a test to determine whether the population proportion of unvaccinated school children contracting winter flu was higher than the population proportion of vaccinated school children. The Z test statistic to test this belief is found to be 1.874. The corresponding p-value is
0.0305
0.1212
0.3036
0.7724
Question 7
Suppose that the new study uses a level of significance of 0.05 to test the claim in Question 6. The probability of Type I error is
0.025
0.05
0.95
0.975
Question 8
Based on previous studies of school children who were vaccinated and contracted the flu, the time in hours that the flu symptoms last is assumed to follow a
0.1628
0.3256
0.6744
0.8372
Question 9
Suppose that a random sample of 5 vaccinated school children is taken. Assuming the distribution in Question 8, the probability that the mean time with symptoms is less than 18 hours is
0.2041
0.3557
0.6354
0.7959
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