A pet food company claims their canned food contains 2.5oz o…

A pet food company claims their canned food contains 2.5oz of real chicken. Suppose we take a random sample of 250 cans of cat food from Walmart’s around the area to perform a hypothesis test and find a p-value of .02.  If we use the same sample to produce a 95% confidence interval, what would be true?

A pet food company claims their canned food contains 2.5oz o…

A pet food company claims their canned food contains 2.5oz of real chicken. Suppose we take a random sample of 250 cans of cat food from Walmart’s around the area to perform a hypothesis test and find a p-value of .02.  If we use the same sample to produce a 95% confidence interval, what would be true?

An auto parts manufacturer claims that less than 12% of thei…

An auto parts manufacturer claims that less than 12% of their batteries will need to be replaced within the first year. A lawsuit challenges that claim, saying that out of 638 reported purchases, 103 of them needed to be replaced within the first year. What would be the null and alternate hypotheses for a statistical test of the company’s claim using the sample taken in the lawsuit?