HP 48gII Graphing Calculator Uživatelský manuál stáhnout pdf (Strana 602)

Press ‚Ù—@@@OK@@@ to access the confidence interval feature in the

calculator. Press ˜˜˜@@@OK@@@ to select option 4. Z-INT: p1 – p2..

Enter the following values:

When done, press @@@OK@@@. The results, as text and graph, are shown below:

– Determine a 95% confidence interval for the mean of the

population if a sample of 50 elements has a mean of 15.5 and a standard

deviation of 5. The population’s standard deviation is unknown.

Press ‚Ù—@@@OK@@@ to access the confidence interval feature in the

calculator. Press — — @@@OK@@@ to select option 5. T-INT: µ. Enter the

following values:

When done, press @@@OK@@@. The results, as text and graph, are shown below:

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HP 48gII Graphing Calculator Uživatelský manuál Strana 602