2. Find critical z values with table H (which is below) is: 3. T test value is (

Question

2. Find critical z values with table H (which is below) is:

3. T test value is (round to three decimal places):

4. Reject the null or do not reject the null:

5. Conclusion: is or is not enough evidence

Summer reading programs are very popular with children. At the Citizens Library. Team Ramona read an average of 23.2 books with a standard deviation of 5.6. There were 16 members on this team. Team Beezus read an average of 26.1 books with a standard deviation of 3.9. There were 25 members on this team. Did the variances of the two teams differ? Use = 0.01. Use the traditional method of hypothesis testing and let 1 be the standard deviation for Team Ramona. Assume that all variables are normally distributed Part 1 State the hypotheses and identify the claim with the correct hypothesis. H : 121.- 1.Jo," |not claim | This hypothesis test is a | two-tailed test. Part 2 out of 5 Find the critical value(s). Round the answer to two decimal places. Critical value is .

Explanation / Answer

Null Hypothesis, There Is No Significance between them Ho: ^2 = ^2
Alternate Hypothesis, There Is Significance between them H1: ^2 != ^2
Test Statistic
Sample 1
s1^2=37.21, n1 =21
Sample 2
s2^2 =5.29, n2 =23
Fo =37.21/5.29 = 7.03
| Fo | =7.03
Critical Value
The Value of |F | at LOS 0.05 with d.f F(n1-1,n2-1)=F(20,22) is 2.389
We got |Fo| =7.034 & | F | =2.389
Make Decision
Hence Value of | Fo | > | F | and Here we Reject Ho

ANS.
1.Ho: ^2 = ^2 ,H1: ^2 != ^2
2. F(n1-1,n2-1)=F(20,22) is 2.389
3. | Fo | =7.03
4. Reject Ho
5. There is enough evidence to support the claim that the variances of the two terms differ.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

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