A researcher studies 45 volunteer citizens from a small community and asks them

Question

A researcher studies 45 volunteer citizens from a small community and asks them about the amount of caffeine (in milligrams) they ingest before and after lunch each day. The null hypothesis for this paired-samples study could be:

there is no difference between the amount of caffeine ingested before and after lunch.

A researcher collects 15 data points that yield a mean of 9.164 and a standard deviation (based on N – 1) of 2.377. What is the standard error for the distribution of means?

Explanation / Answer

A researcher studies 45 volunteer citizens from a small community and asks them about the amount of caffeine (in milligrams) they ingest before and after lunch each day. The null hypothesis for this paired-samples study could be:

there is no difference between the amount of caffeine ingested before and after lunch.

. What is the standard error for the distribution of means?

2.377 / srqt (15) = 0.614

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.