A manufacturer of a new medication on the market for Alzheimer's disease makes a claim that the medication is effective in 65% of people who have the disease. One hundred eighty individuals with Alzheimer's disease are given the medication, and 115 of them note the medication was effective. Does this finding provide statistical evidence at the 0.05 level that the effectiveness is less than the 65% claim the company made? Make sure to include parameter, conditions, calculations, and a conclusion in your answer.

Also, I know this is a lot to ask, but i need the answer to this question too. You don't have to answer it but it would be much appreciated.:

The owners of Hamburger Hop are concerned that many of their customers are starting to purchase their burgers from Cheesy Chops because of its new burger, which has fewer grams of fat than Hamburger Hop. A random sample of 120 single burgers from Hamburger Hop found a mean of 32 grams of fat and a standard deviation of 2.4 grams. A random sample of 120 single burgers from Cheesy Chops found a mean of 29 grams of fat and a standard deviation of 1.8 grams. What formula gives a 98% confidence interval for the difference in mean grams of fat between a Hamburger Hop single burger and a Cheesy Chop single burger?

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