May 2022
Intermediate to advanced
172 pages
5h 54m
German
Content preview from Statistik-Arbeitsbuch, 11th Edition
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a)Errechnen Sie das Ergebnis dieser Intervallschätzung.
b)Werden zusätzlich zu den bisherigen 100 Rohren m weitere zufällig aus der Produktion entnommen und auf Mängel überprüft, so gelte als sicher, dass in der Gesamtstichprobe höchstens 20% der 100 + m Rohre fehlerhaft sind. Wie viele Rohre müssen noch überprüft werden, wenn die Länge des resultierenden Schätzintervalls höchstens gleich 0,05 sein darf?
Aufgabe 3.25
Ein Händler sieht seinen täglichen Gewinn X (der positiv oder negativ ausfallen kann) als zufallsabhängig an, wobei er für die Gewinne verschiedener Tage Unabhängigkeit und stets dieselbe Wahrscheinlichkeitsverteilung mit der Dichte f (x) voraussetzt. Der Händler ist interessiert an einer Intervallschätzung des als Verlusterwartungswert ...
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