ANSWERS_-_sampling_distributions_and_hypothesis_testing -...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: AN S W E R S T h e D i s t r i b u t i o n o f S a m p l e Me a n s . I n t ro d u c t i o n t o H y p o t h e s e s T e s t i n g 1. A company embarks on a new program to boost morale and reduce the amount of absenteeism. The company has recorded an average of 10.5 absences per employee per year with a standard deviation of 4, and an approximately normal distribution. The president of the company sets a goal of = 7absences per year for the employees. A random sample of 8 employees was used. The personnel director believes this is overly optimistic and cannot be achieved. a. Is there a significant difference between the sample mean and the presidents goal? Test with alpha set at .05. STEP 1 : Null Hypothesis: 7 Research Hypothesis: < 7 STEP 2 : Determine the characteristics of the sampling distribution Mean = 10.5; Standard deviation = 4; Standard error of the mean = x = / n = 4/ 8= 1.41 STEP 3 : Determine the cutoff sample score (I Call this the critical region)...
View Full Document

This note was uploaded on 04/29/2010 for the course PSYCH 315 taught by Professor Afroditipanagopoulos during the Winter '10 term at Concordia Canada.

Page1 / 3

ANSWERS_-_sampling_distributions_and_hypothesis_testing -...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online