, 03.12.2019 08:05

# You intend to estimate a population proportion with a confidence interval. the data suggests that the normal distribution is a reasonable approximation for the binomial distribution in this case.while it is an uncommon confidence level, find the critical value that corresponds to a confidence level of 85.8%.(report answer accurate to three decimal places with appropriate rounding.)β

### Another question on Mathematics

Mathematics, 04.02.2019 20:20
Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.