Question

Nexium is a drug that can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of Nexium claims that more than 94% of patients taking Nexium are healed within 8 weeks. In clinical trials, 213 of 224 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the a = 0.01 level of significance. Hypothesis Testing Ho: p=0.94 STEP 1: DETERMINE THE NULL AND ALTERNATIVE HYPOTHESES. Ha:p>0.94 STEP 2: STATE THE LEVEL OF SIGNIFICANCE 0.01 CLASSICAL APPROACH P-VALUE APPROACH STEP 3: COMPUTE THE TEST STATISTIC. STEP 3: COMPUTE THE TEST STATISTIC. STEP 4: DETERMINE THE CRITICAL VALUE STEP 4: DETERMINE THE P-VALUE. STEP 5: COMPARE THE CRITICAL VALUE STEP 5: COMPARE THE P-VALUE AND AND THE TEST STATISTIC AND STATE IF ALPHA, THEN STATE IF THE NULL THE NULL HYPOTHESIS IS REJECTED OR HYPOTHESIS IS REJECTED OR NOT NOT REJECTED. REJECTED STEP 6: STATE THE CONCLUSION TO THE STEP 6: STATE THE CONCLUSION TO THE PROBLEM PROBLEM.

Answer 1

is are g at a=0.01 step - 6 The conclusion is that there insufficient evidence that more than 947. patients taking Nenuim healed after 8 weeks p-value Approach :- Step -u The plz > Calz] (for right Plz > 0*687] tailed test) =plz > 0.69 0.5 - Plocz<0.69] 11 p-value = 0.5 -0.2549 = 0.245 since Step-s p-value null hypothesis > a €0.01), The not rejected. is is Step -6 more The conclusion that there is insufficient evidence evidence that than gul of patients taking Nexium are healed after at weeks a = 0.01 8
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