select the correct answer.\nnatasha conducted...

select the correct answer.\nnatasha conducted a survey to determine how many of the 215 workers in her office building use public transportation to get to work. she surveyed 30 randomly selected workers who entered the office cafeteria throughout the day. of the 30 workers surveyed, 9 used public transportation to get to work.\nwhich change to natashas survey process would make the data more reliable?\na. have workers complete a written survey so there is a written record of the responses\nb. randomly select the sample in the lobby of the building so workers who do not enter the cafeteria can be included.\nc. use a different sample size so the predicted number of workers who use public transportation is a whole number.\nd. ask a randomly selected sample of people who use public transportation whether their office is in the building\n

Answer

# Brief Explanations: The current sample only includes workers who enter the cafeteria. To make the data more reliable, the sample should be more representative of all 215 workers in the building. Selecting the sample in the lobby would include all workers, not just those who enter the cafeteria. # Answer: B. Randomly select the sample in the lobby of the building so workers who do not enter the cafeteria can be included.