A census is a regularly-occurring and official count of a particular population. Census data available at the United States Census Bureau website are an example of: a. Public information Result Correct Comment Census data is a public source of data.
b. The summarized data presented are available to individuals via the web without requiring a password.
c. When an individual completes the census form, there is no expectation that the data will remain private.
d. Census data do not describe behaviors, but provide information about members of a given population.

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis.b)reject the null hypothesis and conclude the mean is higher than $6,000 per day.c)reject the null hypothesis and conclude the mean is lower than $6,000 per day.d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day.expert answer