Score: 0 of 1 pt 100f 14 (1100mplete) HW Score 6.2.31-T use thn standardnom al d

Question

Score: 0 of 1 pt 100f 14 (1100mplete) HW Score 6.2.31-T use thn standardnom al distruton or the 1 strbu ton to const da90% confidence inte val br the populair mean Justify y urde is on Frio di hihi can be edeg -hylde hem In a random sample of 47 people, the mean body mass index (BMI) was 26.7 and the standard deviation was 6.18 Which distribution should be used to construct the confidence interva? Choose the correct answer below A Use aldattution becasso th0 Sample is random, te poplaton is normal.and s unrown. B Use a noemal distribution becauso the sample is random, n2 30, and e is known yc use at-darbution because t sample is random, n z 30, and is unknown. b use a mal distributon because the sample is random, the popuaion normal, and is iron. E. Nother a normal distribution nor a t-distribution can be used because elther the sample is not random, or n

Explanation / Answer

The statistical software output for this problem is:

One sample T summary confidence interval:
: Mean of population

90% confidence interval results:

Hence,

90% confidence interval will be:

Option A; (25.19, 28.21)

Mean Sample Mean Std. Err. DF L. Limit U. Limit 26.7 0.90144565 46 25.186779 28.213221

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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