Test: Test 8 '-
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11Iis Qnnn: 1 pt Thigh-5t: ID Dis our 10 complete
Using a tdistribution table or software or a calculator, report the tstatistic which is multiplied by the stande error to form the margin of error for the
following cases.
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11Ii5 Question: 1 pt 11Ii5Test: 10 pl: 2
A t test for a mean uses a sample of 21 observations. Find the t test statistic value that has a P-value of 0.05 when the alternative hvpothesis is (a) H3: 0 ¢ 0, (b) Ha: u > 0,
(c) Ha u. < 0.
(a) Find
correct
Wrong. Skews right
correct
correct
correct
correct
Wrong. Twice. Answer is .16
correct
correct
Wrong. 22 and 18 are not correct. Maybe 18 is right. Idunno
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l 2 3 4| 5 E 7 S B l
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11": Question: 1. pt This Test: 10 pl: Bar 10 complete [3
Events of low probability can eventually happen if you observe enough trials. Find the probability that the rst i" keystrokes a monkey types on a typewriter spell Tempes
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Statistics Notation
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Notation
Next one- 5 on test 1- is WRONG! Not 13,000
Next one is mostly right ( multi-part, 7 on test 1)
Where is scatter plot? Rest of data? Next one is WRONG! Not No linear association
Decision Rules
The analysis plan includes decision rules for rejecting the null hypothesis. In practice, statisticians describe
these decision rules in two ways - with reference to a P-value or with reference to a region of acceptance.
P-value. The streng