natasha conducted a survey to determine how m...

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

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 office building. Option D only focuses on public - transportation users, not all workers in the building. Option A about having a written record doesn't improve representativeness. Option B changing sample size without improving representativeness isn't helpful. Option C randomly selecting in the lobby includes workers who don't enter the cafeteria, making the sample more representative of all workers in the building. # Answer: C. Randomly select the sample in the lobby of the building so workers who do not enter the cafeteria can be included.