..:l AT&T;? 10:53 PM KFinal CSBS 320 - Final worksheet.doc 286 26 0 295 27 6. Yo
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..:l AT&T;? 10:53 PM KFinal CSBS 320 - Final worksheet.doc 286 26 0 295 27 6. You performed a one-tailed single-sample test and got a t score of 2.55 Your sample size was 26. a What is the critical t-value at p 05? b. What is the value of the "degrees of freedom?" 7. You performed a rtest with a sample size of 31 and got a score of -1.55 If you did a one-tailed test, what is your critical t value at p = b. If you did a one-tailed test, can you reject the null e If you did a two-tailed test, what is your critical t value at p- d. If you did a two-tailed test, can you reject the null 05? hypothesis? 05? hypothesis? 8 You are running a two-sample, two-tailed test. Sample #1 has a mean of 37 and a standard error of the mean of 1.65. Sample #2 has a mean of 43 and a standard error of the mean of 3.28. aCalculate the standard error of the difference of means: b. Calculate the t score: Previous Next Dashboard Calendar TO DO Notifications InboxExplanation / Answer
Solution6a:
t=2.55
alpha=0.05
T critical for one tail =1.7081
Solution6b:
degrees of fredom=n-1=26-1=25
Solution7a:
t=-1.55
n=31
degrees of fredom=n-=31-1=30
alpha=0.05
Tc=-1.6973
solution7b:
t calculated <t critical
Do not reject null hpyothesis
Solution7c;
df=31-1=30
Tc=+-2.0423
Solution7d:
test statistic falls in the critical region
Do not reject Null hypothesis.
Accept null hypothesis
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