Question

You have a data file with 2 columns of data (One control and One experimental). One...

You have a data file with 2 columns of data (One control and One experimental). One column of data has 62 data points. The other column of data has 60 data points. You wish to do a t test on this data set in R. You successfully upload the data set into R but you find that R gives you an error when you try and do a simple t test on the data. What is the problem with this data set?

a. Too many data points

b. Uneven amount of data points

c. Can't do a t test with one control and one experimental (You need more groups)

d. Data was uploaded incorrectly

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Answer :) b Uneven amount of data points

We can perform a t-test for comparing two groups having a continuous dependent variable. However, there is one problem in performing t-test that is both groups are differing in amounts of data points. One group contains 62 data points while another group contains 60 data points. It is not supported for the t-test.

Add a comment
Know the answer?
Add Answer to:
You have a data file with 2 columns of data (One control and One experimental). One...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Use Random number generator (under Data Analysis) to create THREE columns of data each 20 points...

    Use Random number generator (under Data Analysis) to create THREE columns of data each 20 points long. -For the FIRST data set use the following parameters: number of variables (2), number of data point (20), Distribution (Normal), Mean (20), Standard Deviation (5), Random seed (1234). Keep these data in columns labeled A and B. -For the SECOND data set use the following parameters: number of variables (1), number of data point (20), Distribution (Normal), Mean (30), Standard Deviation (5), Random...

  • Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 columns, each 20 points...

    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...

  • With Matlab Please Transplant data The data file “transplants.txt” contains the # of transplants performed each...

    With Matlab Please Transplant data The data file “transplants.txt” contains the # of transplants performed each year by different states in the country. Here’s the first few lines of the file: 0, 2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,2000 1,40,401,413,372,422,433,411,428,476,493,493,403,492,454,464,5272,109,711,754,652,735,618,590,601,607,511,498,421,354,376,341,2893,20,123,156,161,155,159,173,158,171,183,185,154,119,122,103,110 . . . Each row is a different state, and each column (starting at column 2)is a different year; the first column is the state #, and the states are always listed 1, 2, 3, ... . The first row of the file is a header...

  • The data studies the effect of dietary calcium on blood pressure. In the experiment, one group...

    The data studies the effect of dietary calcium on blood pressure. In the experiment, one group of black male adults received calcium supplements for 12 weeks. A control group of black male adults was given placebos for 12 weeks. Earlier tests indicated that calcium could be more effective in the black population. The data are seated systolic blood pressure at the beginning and end of the 12 weeks measured in mm Hg. The data include the decrease after 12 weeks...

  • 1. Use the data in the contingency table to answer the question. Columns Rows 1 2...

    1. Use the data in the contingency table to answer the question. Columns Rows 1 2 3 Total 1 36 35 92 163 2 67 57 113 237 Total 103 92 205 400 You wish to test the null hypothesis of "independence"—that the probability that a response falls in any one row is independent of the column it falls in—and you plan to use a chi-square test. You are given that there are 2 degrees of freedom associated with the...

  • Use Random number generator (under Data Analysis) to simulate the following data set. Create 10 c...

    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...

  • DATA: ( You will have to paste it to a text editor and format it to be entered into statcrunch - ...

    DATA: ( You will have to paste it to a text editor and format it to be entered into statcrunch - sorry for inconvenience but I could not find another way to post the data) Strategy Code Score C 1 45 C 1 53 C 1 72 C 1 55 C 1 67 C 1 53 C 1 66 C 1 54 C 1 53 C 1 67 C 1 60 C 1 64 C 1 69 C 1 52...

  • Problem #2: For experimental test data, you have a system with the following unit step responses. 1.0 0.8 0.6 0.4 0.2 0123456789 10 Time (sec) a) b) Determine the response's time delay and t...

    Problem #2: For experimental test data, you have a system with the following unit step responses. 1.0 0.8 0.6 0.4 0.2 0123456789 10 Time (sec) a) b) Determine the response's time delay and tangential slope along the transient response. Find the PID Control gains using Zeigler-Nichols tuning method. Problem #2: For experimental test data, you have a system with the following unit step responses. 1.0 0.8 0.6 0.4 0.2 0123456789 10 Time (sec) a) b) Determine the response's time delay...

  • 4a) Create a new table that has one column called GoodID and 2 or 3 other...

    4a) Create a new table that has one column called GoodID and 2 or 3 other columns with whatever names and data types you want. But set up a Primary Key Constraint on the GoodID column. Use DESCRIBE to show the column definitions for your table, and paste that in here: 4b) INSERT one row into the table with GoodID equal to 13 and whatever other data (column values) you want. 4c) INSERT another row into the table with GoodID...

  • DATA DATA: ( You will have to paste it to a text editor and format it to be entered into statcru...

    DATA DATA: ( You will have to paste it to a text editor and format it to be entered into statcrunch - sorry for inconvenience but I could not find another way to post the data) Strategy Code Score C 1 45 C 1 53 C 1 72 C 1 55 C 1 67 C 1 53 C 1 66 C 1 54 C 1 53 C 1 67 C 1 60 C 1 64 C 1 69 C 1...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT