Step 1 o Points: 10 i he lengt of human pregnanc. is known to have mean length o

Question

Step 1 o Points: 10 i he lengt of human pregnanc. is known to have mean length of 268 days. A randorn sample of 64 p. it was fourd that the average pregnancy length in that sample was 266 days. Which of the following is a true statement about this scenario? nant wormen was selected and If a different random sample of 64 pregnant women were selected, the average pregna Both 268 and 266 are parameters Both 268 and 266 are statistics 268 is a parameter and 266 is a statistic The recorded sample average of 266 days is clearly a mis that sample would have to be o take. t must be 259 day,s

Explanation / Answer

When we talk about the characteristic of population, we name it as a parameter.

When we talk about the characteristic of a sample, we name it as a statistic.

So the correct answer is:

268 is a parameter and 266 is a statistic.

There is no such rule that the mean of an individual sample should be equal to the population mean.

The only rule is that when you plot all the sample means toghether, the mean of that plot or distribution should be equal to the population mean.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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