Question

In a previous poll, 44% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 478 of 1141 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the (alpha) α=0.10 level of significance.

a.) What are the null and alternative hypothesis?

b.) State (alpha) α. Are you using a Z-distribution or Student t distribution?

c.) Find either Z0 or t0 as appropriate.

d.) Find and interpret the p-value.

e.)Reject or do not reject the null hypothesis? State why.

f.) Write the conclusion of the hypothesis test.

Answer 1