A research scientist wishes to test the claim that the mean number of units taken by community college students is more than 8 units per semester.  She selects a simple random sample of 34 community college students.  Are the requirements to test the claim met?  Explain in 1 - 2 complete sentences

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Q: The mean is approximately (Round to the nearest whole number as needed.)

A: It is given that  n1 = 7 X̄1 = 240 n2 = 4 X̄2 = 190

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A:

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A: Given,

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A: Given Data: Mean Score Frequency 75 285 90 336 66 175   Total=796

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A: Would it be unusual for the sample mean to be less than 2 ?

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Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A: Given Information : In a city with three high schools, all the ninth graders took a Standardized…

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A: Formula : x¯ =x¯1 n1+x¯2 n2 + x¯3 n3n1+n2+n3

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A: given data n = 23 had mean of 76 . two more students take test and score 70 and 65. new mean  = ?

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Q: $88,000

A:

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