Select the statement that expresses an approach used with observational studies

Video Transcript

one question. We have been provided certain full statement that expresses and approaches with observational study. Sorry, We have we have full statements and we do. You don't need to determine the statement which expresses uh an approach used for observational studies. So observational study is the type of study in which the researcher basically observed the subjects without any sort of interference. Right? So the researchers doesn't researcher does not have any control over any treatment on the subjects may be given or which groups of subjects may be separated into. Right? So the researcher is just observing the subjects and recording the data on the basis of the observations. Right? So from the given statement, the most appropriate one. The tax raises the use of observational studies without statement. Second, where it says that we took all those notes, recorded customer accounts, menus, food prices, even the general atmosphere of the food truck environment. Right? So here the researcher is just taking notes or observing the environment of a food truck without any sort of interference. Right? So the here the correct option is option B.

Statistics questions

A company packed 8 dark chocolates in a box of 32 assorted chocolates.

Which of these does NOT represent inferential statistics?

a.) 25% of the chocolates packed in a day are dark chocolates.

b.) 25% of the chocolates manufactured in a batch are dark chocolates.

c.) 25% of the chocolates in a box are dark chocolates.

d.) 25% of the chocolates manufactured in a factory are dark chocolates.

A bakery owner asked 150 customers to taste a new type of cookie and found that 60 people liked its

taste.

Which of these is an example of descriptive statistics?

a.) 40% of all people like the taste of the cookie.

b.) 40% of the people in the city where the bakery is located like the taste of the cookie.

c.) 40% of all the bakery's customers like the taste of the cookie.

d.) 40% of the surveyed customers like the taste of the cookie.

A survey on Internet usage was conducted among a group of 200 students in the school cafeteria. It was

found that 100 students spend at least two hours online every day.

Which of these is an example of descriptive statistics?

a.) 50% of the students surveyed spend at least two hours online each day.

b.) 50% of the students in the school spend at least two hours online each day.

c.) 50% of the students in a class spend at least two hours online each day.

d.) 50% of the students in the cafeteria spend at least two hours online each day.

f numbers collected from a survey are measurements, what are these measurements called before you

perform any calculations?

a.) peer-reviewed data

b.) raw data

c.) biased data

d.) available data

If you are using new information in a survey that was not collected during previous surveys, you will

be using _______ to gauge customer satisfaction.

a.) raw data

b.) available data

c.) biased data

d.) peer-reviewed data

You find some public records about customer satisfaction in the company's archive.

What type of data is this called?

a.) available data

b.) biased data

c.) peer-reviewed data

d.) raw data