THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 98

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
From a random sample of ten students in an operations management class that uses group-learning techniques,the mean examination score was found to be 82.75 and the sample standard deviation was 3.24.For an independent random sample of eight students in another marketing research class that does not use group-learning techniques,the sample mean and standard deviation of exam scores were 75.62 and 7.27,respectively.It is assumed that the and unknown population variances are not assumed to be equal.
-Find the 95% confidence for the difference between the two population mean scores.

• A)7.13 ± 13.29
• B)7.13 ± 0.97
• C)7.13 ± 14.26
• D)7.13 ± 6.16

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Definitions:

Residential Care

A type of living arrangement where individuals receive accommodation and personal care services, typically for the elderly or disabled.

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Sensory perceptions of touch or movement on the body with no physical cause, often associated with certain mental health conditions.

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A disruption in the ability to remember or recall information, often due to brain dysfunction or psychological stress.