Mathematics, 22.04.2020 02:47, hanjonez
Suppose that 250 students are randomly selected from a local college campus to investigate the use of cell phones in classrooms. When asked if they are allowed to use cell phones in at least one of their classes, 40% of students responded yes. Using these results, with 95% confidence, the margin of error is 0.061.How would the margin of error change if the sample size decreased from 250 to 125 students? Assume that the proportion of students who say yes does not change significantly. a. As the sample size decreases, the margin of error remains unchanged. b. As the sample size decreases, the margin of error decreases. c. Cannot be determined based on the information provided. d. As the sample size decreases, the margin of error increases.
Answers: 2
Mathematics, 21.06.2019 17:30, kirsten8605
If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?
Answers: 2
Mathematics, 21.06.2019 18:30, nickname0097
Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?
Answers: 1
Mathematics, 21.06.2019 20:30, icantspeakengles
In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal
Answers: 1
Mathematics, 21.06.2019 22:50, 7obadiah
He graph of f(x) = |x| is stretched by a factor of 0.3 and translated down 4 units. which statement about the domain and range of each function is correct? the range of the transformed function and the parent function are both all real numbers greater than or equal to 4. the domain of the transformed function is all real numbers and is, therefore, different from that of the parent function. the range of the transformed function is all real numbers greater than or equal to 0 and is, therefore, different from that of the parent function. the domain of the transformed function and the parent function are both all real numbers.
Answers: 3
Suppose that 250 students are randomly selected from a local college campus to investigate the use o...
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