B. Find the length of the confidence interval given the following data: 6. s = 5.36, n = 350, confidence level: 99% 7. s = 2.35, n = 250, confidence level: 99% %3D 8. s = 1.20, n = 200, confidence level: 95% 9. s = 8.15, n = 29, confidence interval: 99% 10. s = 3.25, n = 17, confidence interval: 95% C. Solve the following problems. 11. In a group presentation, the average geometric reasoning of Grade 10 students in a Mathematics camp was observed to be 80 with s standard deviation of 4. A researcher wants to replicate the study to estimate the true population mean u to within 0.5 maximum error. If the 98% level of confidence is adopted, how many respondents are needed? 12. Teacher Carol, wants to conduct a survey about the average number of students in a certain school who wants online class instead of distance modular learning. If she plans to use 99% confidence level, 0.5 as the margin of error, and a standard deviation of 5. How many sample sizes does she need for the survey?
B. Find the length of the confidence interval given the following data: 6. s = 5.36, n = 350, confidence level: 99% 7. s = 2.35, n = 250, confidence level: 99% %3D 8. s = 1.20, n = 200, confidence level: 95% 9. s = 8.15, n = 29, confidence interval: 99% 10. s = 3.25, n = 17, confidence interval: 95% C. Solve the following problems. 11. In a group presentation, the average geometric reasoning of Grade 10 students in a Mathematics camp was observed to be 80 with s standard deviation of 4. A researcher wants to replicate the study to estimate the true population mean u to within 0.5 maximum error. If the 98% level of confidence is adopted, how many respondents are needed? 12. Teacher Carol, wants to conduct a survey about the average number of students in a certain school who wants online class instead of distance modular learning. If she plans to use 99% confidence level, 0.5 as the margin of error, and a standard deviation of 5. How many sample sizes does she need for the survey?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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