Adverse side effects are always a concern when testing and trying new medicines. Placebo-controlled clinical studies were conducted in patients 12 years of age and older who were receiving “once-a-day” doses of Allegra, a seasonal allergy dru g. The following results were published in the April 2005 edition of Reader’s Digest.
Determine, at the 0.05 level of significance, whether there is a difference in the proportion of patients reporting headaches between the two groups.
Answer to relevant QuestionsForty-one small lots of experimental product were manufactured and tested for the occurrence of a particular indication that is an attribute in nature yet causes rejection of the part. Thirty-one lots were made using one ...Express the Ho and Ha of Example 10. 17 equivalently in terms of standard deviations Calculate F given s1 2 = 3.2 and s2 2 = 2.6. The quality of an end product is somewhat determined by the quality of the materials use Calculate the observed value of F, F, for comparing the variances of these two sets of dat a. Find t(15, 0.025). Describe the role this number plays when forming a confidence interval for the mean difference.
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