- The Data Values For A Certain Sample Are Given In 1 The Following Frequency Table Frequency Class Limits 6 2 4 10 5 7 7 1 (35.45 KiB) Viewed 67 times
- The Data Values For A Certain Sample Are Given In 1 The Following Frequency Table Frequency Class Limits 6 2 4 10 5 7 7 2 (118 KiB) Viewed 67 times
?a) What is the sample size ?b) What is the mark (midpoint) of the 5th class ? c) What is the class width ?d) What are the boundaries of the 4th class ?e) Show the relative of frequency distribution ?f) Show the cumulative of frequency distribution g) Find the mean A population has a mean of 200 and a standard (2 .deviation of 50 A sample of size 100 will be taken and the sample mean x will be used to estimate the population mean ?a. What is the expected value of x ?b. What is the standard deviation of x Assuming a sample of 144 students, if the sample (3 mean of student marks is 75. Assuming the sample variance is 64 Obtain a 95% confidence interval of the population ?mean