Question

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 232 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the α=0.05 level of significance.

a) Because np0 (1-p0) = _Integer_ _( < or > or =)_ 10, the sample size is __> or <___ 5% of the population size, and the sample ___Random or not random____________, the requirements for testing the hypothesis ______ satisfied.

b) What are the null and alternative hypotheses?

H0: ___ ___ ___ versus H1: ___ ___ ___ (DO NOT ROUND)

c) Determine the critical value(s).

za= ____ or +- Za/2 = +- ___

Answer #1

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.
Use Minitab Express to test the manufacturer’s claim at the α =
0.01 level of significance. Report your answers...

Nex
is a medicine that you can use to reduce the acid produced by the
body and heal damage to the esophagus due to acid reflux. The
manufacturer of Nex claims that over 91% of patients taking Nex are
cured in 8 weeks. In clinical trials, 210 out of 230 patients
suffering from acid reflux disease were cured after 8 weeks. Test
the manufacturer's claim at the significance level a = 0.05. Answer
the following: Hypothesis testing: Ho: p versus...

9. Nex is a medicine that can be used to reduce the acid
produced by the body and heals damage to the esophagus due to acid
reflux. The manufacturer of Nex claims that over 94% of patients
taking Nex are cured in 8 weeks. In clinical trials, 214 of 225
patients suffering from acid reflux disease were cured after 8
weeks. Test the manufacturer's claim at the significance level α =
0.05.
Answer the following:
Hypothesis test: Ho: p =...

In a clinical trial, 26 out of 866 patients taking a
prescription drug daily complained of flulike symptoms. Suppose
that it is known that 2.7% of patients taking competing drugs
complain of flulike symptoms. Is there sufficient evidence to
conclude that more than 2.7% of this drug's users experience
flulike symptoms as a side effect at the alpha equals 0.1 level of
significance?
Because np0 (1 – p0) = ____ ____ 10, the sample size is ________
5% of the...

In a clinical trial, 20 out of 881 patients taking a
prescription drug daily complained of flulike symptoms. Suppose
that it is known that 1.9% of patients taking competing drugs
complain of flulike symptoms. Is there sufficient evidence to
conclude that more than 1.9% of this drug's users experience
flulike symptoms as a side effect at the α=0.05 level of
significance? Because np 0 (1 minus p 0) = 10, the sample size is ▼
less than or greater than...

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