Will surveyed 37 elementary school students in a regional spelling bee.Is this sample of elementary school students likely to be biased?yesnoSubmit

Caden surveyed 7 teachers from each academic department at school. Each department has an equal number of teachers.Is this sample of the teachers in the school likely to be biased?yesnoSubmit

Marissa randomly selected 25 people who go to her school to take a survey. Is this sample of the school likely to be biased?

In 2017, 20.1% of all high school students in the U.S. had a job. A school official from a district thought that the percentage of high school students who had a job in that school district was higher than the national proportion. She took a random sample of 285 high school students and found that 64 of had a job.Is this survey valid or not valid for testing the hypothesis that the proportion of the high school students who worked in that district is higher than the national average?

The faculty senate at a large university wanted to know what proportion of the students thought foreign language classes should be required for everyone. The statistics department offered to cooperate in conducting a survey, and a simple random sample of 500 students was selected from all the students enrolled in statistics classes. A survey form was sent by email to these 500 students.True or false? Since the sample is random, it is representative of the population of interest. True False

You want to know whether the students in your school enjoy the school lunch. You survey every student in your class. Is this survey biased or unbiased?Unbiased because the sample included all the students in the class.Biased because the sample only included the students in one class.Biased because the sample included all the students in the class.Unbiased because the sample only included the students in one class.