Instruction 10-6 Two Samples Each of Size 25 Are Taken from Independent

question 14

Short Answer

Instruction 10-6
Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. The first sample has a mean of 35.5 and standard deviation of 3.0 while the second sample has a mean of 33.0 and standard deviation of 4.0.
-Referring to Instruction 10-6,the p-value for a one-tailed test whose computed statistic is 2.50 (in the hypothesised direction)is between __________ and __________.

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Definitions:

Just Noticeable Difference

The minimum difference in stimulation required to detect a difference between two stimuli, also known as the difference threshold.

Perceptual Threshold

The minimum level at which a stimulus is detected by the senses.

Difference Threshold

is the minimum detectable difference between two sensory stimuli, also known as the just noticeable difference (JND), essential in sensory and perception studies.

Weber's Threshold

A principle in psychology that states the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus.