same question was asked of 1100 adults and 286 indicated that they were total abstainers. Complete parts (a) and (b) below. (a) Determine the sample proportion for each sample. The proportions of the adults who took the 1945 survey and the recent survey who were total abstainers are 0.330 and 0.260 , respectively. (Round to three decimal places as needed.) (b) Has the proportion of adults who totally abstain from alcohol changed? Use the a = 0.10 level significance. First verify the model requirements. Select all that apply. YA. The sample size is less than 5% of the population size for each sample. O B. The data come from a population that is normally distributed. O c. The sample size is more than 5% of the population size for each sample. YD. n,P1 (1-P1) 2 10 and ngP2 (1-P2) 2 10 YE. The samples are independent. OF. The samples are dependent. Identify the null and alternative hypotheses for this test. Let p, represent the population proportion of 1945 adults who were total abstainers and p2 represent the population proportion of recent adults who were total abstainers. Determine the null and alternative hypotheses. Ho: P1 = P2 H: P1 * P2 Find the test statistic for this hypothesis test. O (Round to two decimal places as needed.)

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Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.