STAT FINAL

Draw conclusions to determine what you learned and whether you achieved your goal. In this​ case, we discovered the average time per day that a household spends streaming internet video.

Each​ year, a group surveys​ 50,000 households to study internet usage. In one area of the​ study, the group is interested in finding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. Describe the fifth step in this statistical study. Choose the correct answer below.

State the goal of your study. In this​ case, it is to discover how many hours per day a household spends streaming internet video.

Each​ year, a group surveys​ 50,000 households to study internet usage. In one area of the​ study, the group is interested in finding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. Describe the first step in this statistical study. Choose the correct answer below.

Use the sample statistics to infer the population parameters. In this​ case, based on the data​ gathered, the group estimates the average time per day that a household spends streaming internet video.

Each​ year, a group surveys​ 50,000 households to study internet usage. In one area of the​ study, the group is interested in finding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. Describe the fourth step in this statistical study. Choose the correct answer below.

Choose a representative sample from the population. In this​ case, it would be choosing a sample of​ 50,000 households.

Each​ year, a group surveys​ 50,000 households to study internet usage. In one area of the​ study, the group is interested in finding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. Describe the second step in this statistical study. Choose the correct answer below.

Collect raw data from the sample and summarize these data by finding sample statistics of interest. In this​ case, it would be asking the households how many hours they spend streaming internet video and turning this data into an average.

Each​ year, a group surveys​ 50,000 households to study internet usage. In one area of the​ study, the group is interested in finding out how many hours a day the household spends streaming video from the internet. Describe the five basic steps in a statistical study with an example of their application below. Describe the third step in this statistical study. Choose the correct answer below.

49-53 (ADD AND SUBTRACT THE NUMBER OF PERCENTAGE POINTS)

In a poll of 1467 adults​ nationwide, asking whether they favor or oppose teachers and school officials carrying guns in​ school, 51​ were opposed. The margin of error is 2 percentage points. Use the given statistic and margin of error to identify the range of values​ (confidence interval) likely to contain the true value of the population parameter.

The number of office workers who said that they do not make personal phone calls is 67 (turn percentage into decimal and multiply by the population)

In a survey of 1,394 office workers, 4.8 said that they do not make personal phone calls. Find the actual number of respondents corresponding to the given percentage.