Question

Use another random decimal fraction generator at Random.org, linked here to generate a list of ten...

Use another random decimal fraction generator at Random.org, linked here to generate a list of ten two-digit random numbers between 10 and 30. Calculate the z-score of the median of the data set. (12, 15, 17, 18, 19, 21, 23, 24, 25, 28) σ: 4.6647615158762 Mean: 20.2 Median: 20 Z-score: -0.043

1. What does the z-score of the data set median just above tell you about the shape of the distribution? How do you know this?

2. If you were to take repeated random samples of n = 5 from the data set just above, what would be the expected value of the mean of the sampling distribution of sample means?

3. Considering the set of ten two-digit random numbers above as a population, calculate the standard error of the mean for the samples in question 4.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. What does the z-score (-0.0566) of the data set (12, 14, 17, 19, 20, 21,...
1. What does the z-score (-0.0566) of the data set (12, 14, 17, 19, 20, 21, 24, 25, 26, 30) median (20.5) just above tell you about the shape of the distribution? How do you know this? Expert Answer An expert answer will be posted here Post a question Answers from our experts for your tough homework questions 2. If you were to take repeated random samples of n = 5 from the data set just above, what would be...
List the numbers here, separated by commas. 96, 80, 91, 83, 40, 98, 86, 91, 72,...
List the numbers here, separated by commas. 96, 80, 91, 83, 40, 98, 86, 91, 72, 60 Calculate the mean, median and mode, showing all your work in step-by-step fashion. Do not use technology for this. Based on your calculations in question 2 above, what can you determine about the shape of the distribution? How do you know this? Calculate the population standard deviation of the data set, again showing all your work in step-by-step fashion. Do not use technology....
On each trial of a digit span memory task, the participant is asked to read aloud...
On each trial of a digit span memory task, the participant is asked to read aloud a string of random digits. The participant must then repeat the digits in the correct order. If the participant is successful, the length of the next string is increased by one. For instance, if the participant repeats four digits successfully, she will hear five random digits on the next trial. The participant’s score is the longest string of digits she can successfully repeat. A...
A random sample of n = 81 observations is drawn from a population with a mean...
A random sample of n = 81 observations is drawn from a population with a mean equal to 15 and a standard deviation equal to 9 . Complete parts a through g below. a. Give the mean and standard deviation of the? (repeated) sampling distribution x overbar . mu Subscript x overbar equalsnothingsigma Subscript x overbar equalsnothing ?(Type integers or? decimals.) b. Describe the shape of the sampling distribution of x overbar . Does this answer depend on the sample?...
2. The top 10 ranked jobs based on various criterion are listed below. Here we are...
2. The top 10 ranked jobs based on various criterion are listed below. Here we are interested in looking at the stress rating of each job (I picked the right one in terms of stress!...also note how many jobs that are ranked towards the top involve math and statistics!): Job Stress Rating Mathematician 24 University Professor(Tenured) 4 Statistician 54 Actuary 54 Audiologist 1 Dental Hygienist 11 Software Engineer 18 Computer Systems Analyst 58 Occupational Therapist 28 Speech Pathologist 17 a....
The following is a small data set of 25 observations. I want you to calculate some...
The following is a small data set of 25 observations. I want you to calculate some statistics by hand to cement the class material. You can use the regular formula for the variance or the computational formula - I’m just interested in the correct result. If you use the computational formula, you will want to calculate a separate row of each value squared in order to calculate the Sum(x^2). Excel can be used to solve this problem. Var 28 4...
1. Assume that the weights of all girl scout cookie boxes are normally distributed with a...
1. Assume that the weights of all girl scout cookie boxes are normally distributed with a mean of 9.0 ounces and a standard deviation of .24 ounces. If you were to generate a distribution of sample means for cookie box samples of size n=25 from this population, what would you expect the mean of sampling distribution to be? 8.75 oz, 0.05,9.0,225 2. a random sample of n=16 cookie boxes is obtained from the population of girl scout cookies (mean= 9.0...
Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 columns,...
Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 columns, each 20 points long and use the following parameters: Number of variables (10), number of data point (20), Distribution (Normal), Mean (40), Standard Deviation (10), Random seed (1234). The data should be in columns: A,B,C,….,I,J. Randomly pick two columns (say Column B and Column H) and perform 2-sided t-test on these two data columns. Record the P-value and repeat this procedure several times (at...
Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 columns,...
Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 columns, each 20 points long and use the following parameters: Number of variables (10), number of data point (20), Distribution (Normal), Mean (40), Standard Deviation (10), Random seed (1234). The data should be in columns: A,B,C,….,I,J. Randomly pick two columns (say Column B and Column H) and perform 2-sided t-test on these two data columns. Record the P-value and repeat this procedure several times (at...
1. Let x be a continuous random variable. What is the probability that x assumes a...
1. Let x be a continuous random variable. What is the probability that x assumes a single value, such as a (use numerical value)? 2. The following are the three main characteristics of a normal distribution. The total area under a normal curve equals _____. A normal curve is ___________ about the mean. Consequently, 50% of the total area under a normal distribution curve lies on the left side of the mean, and 50% lies on the right side of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT