Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

SPSS Extra Credit: Calculating Mean, SD & T-Test on LOT Scores for US Stats Students - Pro, Assignments of Data Analysis & Statistical Methods

Instructions for calculating the sample mean and standard deviation of a set of lot scores for american statistics students, as well as conducting a one-sample t-test to determine if the data comes from a population with a mean of 20. The problem also instructs the reader to compare the results obtained using spss.

Typology: Assignments

Pre 2010

Uploaded on 08/09/2009

koofers-user-0bm
koofers-user-0bm 🇺🇸

10 documents

1 / 1

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
STA 100 SPSS Extra Credit Problem Due at Final
Prof. Thistleton
Suppose you have the following data on LOT scores for American statistics students chosen at
random:
20 14 16 9 21 15 19
Calculate a sample mean, x, and a sample standard deviation, s. Conduct a simple t-test to
determine whether you believe these data points come from a population whose mean is µ= 20.
Use a two sided alternative and level of significance α= 0.05. Report your p-value.
1. H0:
H1:
2. α=
3. t=
4. p-value
5. Conclusion
Now perform the same computation using SPSS. Enter these data and name the variable associated
with these data LOT S CORE . Now test the hypothesis by selecting Analyze Compare Means
One Sample T Test. Move LOT S CORE into the test variable field and enter a test value of
20. Select OK. Print your output. Does the calculated t-value agree with your own? Does your
p-value compare to the one computed by SPSS? (This is denoted Sig. (2-tailed)).
1

Partial preview of the text

Download SPSS Extra Credit: Calculating Mean, SD & T-Test on LOT Scores for US Stats Students - Pro and more Assignments Data Analysis & Statistical Methods in PDF only on Docsity!

STA 100 SPSS Extra Credit Problem Due at Final Prof. Thistleton

Suppose you have the following data on LOT scores for American statistics students chosen at random:

20 14 16 9 21 15 19

Calculate a sample mean, x, and a sample standard deviation, s. Conduct a simple t-test to determine whether you believe these data points come from a population whose mean is μ = 20. Use a two sided alternative and level of significance α = 0.05. Report your p-value.

  1. • H 0 :
    • H 1 :
  2. α =
  3. t =
  4. p-value
  5. Conclusion

Now perform the same computation using SPSS. Enter these data and name the variable associated with these data LOT SCORE. Now test the hypothesis by selecting Analyze → Compare Means → One Sample T Test. Move LOT SCORE into the test variable field and enter a test value of

  1. Select OK. Print your output. Does the calculated t-value agree with your own? Does your p-value compare to the one computed by SPSS? (This is denoted Sig. (2-tailed)).