A Simple Random Sample of 25 Items from a Normally

question 112

Short Answer

A simple random sample of 25 items from a normally distributed population resulted in a sample mean of 28 and a standard deviation of 7.5. Construct a 95% confidence interval for the population mean.

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Definitions:

Ratio Schedules

In operant conditioning, schedules that deliver reinforcement after a certain number of responses have been made, either fixed or variable.

Interval Schedules

A type of operant conditioning reinforcement schedule where the first response is rewarded only after a specified amount of time has elapsed.

FR 30 Schedule

A fixed-ratio schedule of reinforcement where a specific behavior is rewarded after it has been performed a fixed number of times, in this case, 30 times.

VR 30 Schedule

A variable ratio reinforcement schedule where a response is reinforced, on average, every thirtieth time it is made.