Question

Consider the following population of 6 numbers. A B C D E F 75 77 78...

Consider the following population of 6 numbers.

A B C D E F
75 77 78 80 84 88

a. The population mean is  .

b. Bob selected one sample of four numbers from this population. The sample included the numbers 80, 84, 88, 77. Calculate the following for this sample:

The sample mean is  .

The sampling error is  .

c. When Bob calculated the sample mean, he mistakenly used the numbers 80, 87, 88, 77. Calculate the following for this (incorrect) sample:

The (incorrect) sample mean is

The sampling error is

The nonsampling error is

Note: Keep 2 decimal places in your answers.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The following weights in kilograms were recorded for a hockey team: 73 75 76 77 78...
The following weights in kilograms were recorded for a hockey team: 73 75 76 77 78 86 81 75 100 92 82 73 85 79 84 92 80 78 77 81 83 74 80 69 92 79 72 76 a) Find the mean, mode, and median weights. b) Which of these three measures of central tendency is the least representative of the set of weights? Why?
The following scores represent a sample of final examination grades for a statistics course 23 60...
The following scores represent a sample of final examination grades for a statistics course 23 60 98 32 57 74 52 70 82 69 74 63 80 62 80 77 81 95 41 65 92 85 85 61 36 79 55 76 52 10 64 75 78 25 80 48 83 64 88 82 81 67 41 71 67 54 34 72 74 43 60 78 84 89 76 84 17 90 15 79 a) Compute the 20th percentile of...
Consider the following sample data Sample A: 7,14,21 Sample B: 77, 84, 91 Sample C: 1,080;...
Consider the following sample data Sample A: 7,14,21 Sample B: 77, 84, 91 Sample C: 1,080; 1,087; 1,094 (a) Find the mean and standard deviation for each sample (b) What does this exercise show about the standard deviation? A: The idea is to illustrate that the standard deviation is not a function of the value of the mean or B: The idea is to illustrate that the standard deviation is a function of the value of the mean
A 6th grade teacher was interested in comparing two ways of teaching math to her students....
A 6th grade teacher was interested in comparing two ways of teaching math to her students. She used method A with one of her existing classes and method B with another one. She flipped a coin to decide which class would receive method A. At the end of the year her students obtained the following scores (percent correct) on a comprehensive math exam. Method A: 75, 82, 88, 93, 69, 72, 78, 81, 84, 96 Method B: 66, 84, 72,...
Since we are attempting to examine the behavior of a class of students, the behavior of...
Since we are attempting to examine the behavior of a class of students, the behavior of an individual (as we calculated in objective 1) is really of little concern to us. Assuming that there are 30 students enrolled for a typical class, use the central limit theorem to calculate the following:    •   What would be the shape of the distribution of the average class grade of these 30 students?    •   What would be the average class average of...
C) Calculate the mean, mode, median, P65 for the following data: 75, 89, 89, 89, 56,...
C) Calculate the mean, mode, median, P65 for the following data: 75, 89, 89, 89, 56, 77, 99, 91, 80, 76, 84, 83, 101, 111, 94. (Show all process to reach the final result). D) Find the mean for the following frequency distribution: (Show all the          process to reach the final result). Limits Frequency 30-39 15 40-49 6 50-59 12 60-69 7 70-79 10 80-89 13 90-99 8
Question 9-15 are based on the random sample below which is obtained to test the following...
Question 9-15 are based on the random sample below which is obtained to test the following hypothesis about the population mean. Test the hypothesis that the mean is less than 80. 80 100 81 93 80 57 98 90 71 56 58 78 59 55 55 77 72 78 56 94 98 59 93 86 89 62 60 66 59 71 96 97 94 69 64 77 87 77 64 90 90 95 98 99 56 69 72 81 95...
The following scores represent a sample of final examination grades for a statistics course 23 60...
The following scores represent a sample of final examination grades for a statistics course 23 60 98 32 57 74 52 70 82 69 74 63 80 62 80 77 81 95 41 65 92 85 85 61 36 79 55 76 52 10 64 75 78 25 80 48 83 64 88 82 81 67 41 71 67 54 34 72 74 43 60 78 84 89 76 84 17 90 15 79 a) Provide a frequency polygon with...
6. Use the pulse rates in beats per minute​ (bpm) of a random sample of adult...
6. Use the pulse rates in beats per minute​ (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 78 bpm. Use a 0.10 significance level. Pulse Rate​ (bpm) 102 102 36 100 72 52 46 71 83 87 50 58 36 46 52 94 39 65 40 101 76 65 89 67 99 51 70 44 76 77 57 102 87 79 41 95...
(use the following to solve a, b, c, d, e, f and g below) An engineer...
(use the following to solve a, b, c, d, e, f and g below) An engineer working for a leading electronics firm claims to have invented a process for making longer-lasting TV picture tubes. Tests run on 50 picture tubes made with the new process show a mean life of 1,700 hours.   Tests run over the last three years on a very large number of TV picture tubes made with the old process consistently show a mean life of 1,638...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT