Question

When domestic sources sources of building supplies ran low, roughly 60,000 homes were built with imported Chinese drywall. The New York Times reported that federal investigators identified a strong association between chemicals in the drywall and electrical problems, as well as evidence of respiratory problems caused by hydrogen sulfide gas. A random sample of 51 homes found that 41 had such problems. Does the data provide strong evidence for concluding that more than 50% of all homes with Chinese drywall have electrical/environmental problems? Carry out a 4-part hypothesis test using α = .01: Hypotheses, check assumptions, calculations and conclusion. Please show your R code that gives you your p-value.

Example of the conclusion: Because p-value=____ is > or < α = _____, we fail to reject or reject Ho in favor of Ha. This means that we do or do not have enough evidence to say that the true proportion____________ (problem context)

Answer 1

for p value ,u can use 1-qnorm(4.34) code to get p value

Because p-value=0.000_ is < α = 0.01_____, we reject Ho in favor of Ha. This means that we do o have enough evidence to say that the true proportion is more than 0.5