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Screenshot 2017-09-22 16.13.13.png - 8 A pepulatien with a...

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Unformatted text preview: 8. A pepulatien with a mean ef p. = 8 has EX = 40. Hewsr many senses are in the population? 9. Onesampleefs =12seereshasameanefilrl’=’Irl anda seeend sample ef a = 3 seereshas amean ef M = 12. If the two samples are eemhined, what is the mean fer the eembined sample? 10. Cine sample has a mean at M = 8 and a seeend sample has a mean ef M = 16. The twe samples ale eemhined into a single set ef seeres. a. What is the mean fer the combined set if both ef the etiginal samples have a = 4 seeres? b. What is the mean fer the eemhined set if the first samplehasn = 3andtheseeendsamplehasn = 5‘? e. Wisthemeanfertheeemhinedsetifthefirst samplehasn. = fiandtheseeendsamplehasn = 3'? 11. the sample has a mean ef M = 5 and a seeend sample has a mean ef M = ID. The two samples are eemhined into a single set at seeres. a. What is the mean fer the eembined set if bath ef the eriginal samples have a = 5 seeres'il I}. What is the mean fer the eemhined set ifthe first sample has n = 4 seeres and the seeenfl sample has a = 6'? e. What is the mean fer the eembined set if the first sample has n = 6 seeres and the seeend sample has a = 4?...
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