Question

When conducting a hypothesis test you may either the critical value method OR the p-value method but you must indicate which method you're using. Do NOT simply write reject or fail to reject the null hypothesis, write a statement about what it means in the context of the problem. 1. Identify the null and alternative hypotheses for the following problems a. The manager of a restaurant believes that it takes a customer less than or equal to 25 minutes to eat lunch. b. Economists have stated that the marginal propensity to consume is at least 90% out of every dollar. It has been stated that 75 out of every 100 people who go to the movies on Saturday night buy popcorn. c.

Answer 1

1.a. Here claim is that mean is less or equal to 25. As null hypothesis always have equality sign

Hypothesis is vs $H_1:\mu> 25$

b. Here claim is that mean is atleast 90$ out of every dollar. As null hypothesis always have equality sign

So hypothesis is $H_0:\mu\geq 90$ vs $H_1:\mu< 90$

c. Here claim is that p=0.75

So hypothesis is $H_0:p=0.75$ vs

Hi . P 0.75