Question Help is Question Help A random sample of 31 waiting times (n minutes) b

Question

Question Help is Question Help A random sample of 31 waiting times (n minutes) before patients saw a medical professional in a hospitals minor emergency department had a variance of 0.25 minute. After a new admissions procedure was implemented, random sample 25 times had a variance of 0.09 minute. At ot 0.10, can you support the hospitals claim that the standard deviation of the waiting times has decreased? Complete parts (a) through (e) below. (a) Identify the claim and state Ho and Ha Let o represent the initial variance and o represent the variance for the new process. Choose the correct answer below. O A. o2 20 Ho: oi 202. Ha or Ho: 01 -02. Ha 01 702 O D. rhl natormine tho rritiral val anrt tha raiortinn reninn What is the critiral F-value? Click to select your answer(s).

Explanation / Answer

a) Correct Answer: Option (D)

b) F0 = 1.672

Correct Answer: Option B

c)

F= 0.25/0.09 = 2.7778

d)

Yes, reject the null hypothesis

e)

correct Answswer: Option (A)

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

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