In a previous poll, 43% 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, 1112 adults with children under the age of 18 were selected at random, and 459 of those 1112 adults 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 a = 0.01 significance level. ... Because npo (1- Po) 10 and the sample size is 5% of the population size, and the adults in the sample selected at random, all of the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.)

A test of qualifying skills was taken by random samples of aspiring court reporters in both Iowa and Minnesota. Minnesotans had a mean score of 87.5, and Iowans had a mean score of 82.5 (out of 100). For each question below: In the first blank, type either "BT" for bootstrap, or "RND" for randomization. In the second blank, fill in the appropriate value, using your knowledge of these concepts. To estimate how much higher the Minnesota score is than the score for Iowa, the researcher constructs a confidence interval, using a  distribution,  which would be centered at the number, . To determine if the sample provides sufficient evidence that there is a difference between qualifying skills (as judged by mean scores on the test) of Minnesotans and Iowans, the researcher conducts a hypothesis test, making use of a  distribution, which would be centered at the number,

Write both the null and alternative hypothesis.  Use the correct notation or vocabulary  Less than 43% of students have access to high speed internet at home.

What is step 5 of hypothesis testing ?