Steps |
Key Sequence |
Screens |
1. Set up Stats Tests |
STAT |
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twice |
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0 (for 2–SampTInt...) |
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2. Select Stats for Input |
once (if necessary), then ENTER |
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3. Input mean of SAMPLE |
once, enter mean of SAMPLE1, then ENTER |
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4. Input standard deviation |
enter standard devation of SAMPLE1, then ENTER |
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5. Input sample size |
enter sample size of SAMPLE1, then ENTER |
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6. Input mean of SAMPLE |
enter mean of SAMPLE2, then ENTER |
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7. Input standard deviation |
enter standard devation of SAMPLE2, then ENTER |
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8. Input sample size |
enter sample size of SAMPLE2, then ENTER |
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9. Input confidence level |
enter confidence level (AS DECIMAL), then ENTER |
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10. Enter no for Pooled |
press ENTER on No |
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11. Calculate CI |
once, ENTER |
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12. Scroll down to find more calculations |
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In this case the 95% CI is –12.28 to 27.083. |