Please make sure to do the rounding when it's needed. Historical data indicate that the standard deviation of a process is 6.4.a. A recent sample of size 27 produced a variance of 61.9. Test to determine if the variance has increased using a significance level of 0.05.b. A recent sample of size 9 produced a variance of 8.64. Test to determine if the variance has decreased using a significance level of 0.025.C. A recent sample of size 15 produced a variance of 56.9. Test to determine if the variance has changed using a significance level of 0.10.a. Formulate the null and alternative hypotheses. Select the correct choice below and fill in the answer boxes to complete your choice.(Type integers or decimals. Do not round.)O A. Ho: o2 2ОВ. Но-HA: o2<HA: 02>OC.НоO D. Ho: o2 =HA: o2 =HAConstruct the rejection region and define the decision rule.(Round to two decimal places as needed.)O A. Ifx? > xổ.05O B. Ifx > xổ.025O C. Ifx < xổ 95reject the null hypothesis.or if x < x6 975 =|reject the null hypothesis.reject the null hypothesis.Compute the test statistic.(Round to two decimal places as needed.)Reach a decision and draw a conclusion.Because x isthe rejection region,v the null hypothesis andthat the variance of the process hasb. Formulate the null and alternative hypotheses.(Type integers or decimals. Do not round.)O A. Ho: o2sОВ. Но-HA: o2>HA: o2 <Oc.НоO D. Ho: o2 =Ha: o2HA: o² ±Construct the rejection region and define the decision rule.(Round to two decimal places as needed.)O A. If x? < xổ 975 =O B. If y > xo.025reject the null hypothesis.reject the null hypothesis.OC. If x? > xổ.0125or if x? < xổ 9875reject the null hypothesis. Compute the test statistic.(Round to two decimal places as needed.)Reach a decision and draw a conclusion.Because x isv the rejection region,v the null hypothesis andV that the variance of the process hasc. Formulate the null and alternative hypotheses.(Type integers or decimals. Do not round.)O A. Ho: o? +O B. Ho: o? 2HA: o2 =O C. Ho: o2 =O D. Ho: o sHA:HA: 02Construct the rejection region and define the decision rule.(Round to two decimal places as needed.)O A. If x? > xổ 10O B. If x? > xổ.05OC. If? < xổ 90reject the null hypothesis., or if x2 <reject the null hypothesis.reject the null hypothesis.Compute the test statistic.(Round to two decimal places as needed.)Reach a decision and draw a conclusion.Because x isv the rejection region,V the null hypothesis andthat the variance of the process has

Given : σ0 = 6.4 , Variance of the process = σ20 =40.96 Population Variance…

Historical data indicate that the standard deviation of a process is 6.4. a. A recent sample of size 27 produced a variance of 61.9. Test to determine if the variance has increased using a significance level of 0.05. b. A recent sample of size 9 produced a variance of 8.64. Test to determine if the variance has decreased using a significance level of 0.025. c. A recent sample of size 15 produced a variance of 56.9. Test to determine if the variance has changed using a significance level of 0.10. a. Formulate the null and alternative hypotheses. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) O A. Ho: o2 2 ОВ. Họ: OC. Ho: o? O D. Ho: o2 = HA: o² = Construct the rejection region and define the decision rule. (Round to two decimal places as needed.) O A. Ifx? > xổos = O B. If? > xổ.025 OC. If? HA o? < Oc. O D. Ho o2 = Но HA: o2 = HA: o2 Construct the rejection region and define the decision rule. (Round to two decimal places as needed.) O A. If x < xố.975 reject the null hypothesis. O B. Ifx > xổ.025 reject the null hypothesis. O C. Ifx? > xảo125 =, or if x? < x3 9876 reject the null hypothesis.

Historical data indicate that the standard deviation of a process is 6.4. a. A recent sample of size 27 produced a variance of 61.9. Test to determine if the variance has increased using a significance level of 0.05. b. A recent sample of size 9 produced a variance of 8.64. Test to determine if the variance has decreased using a significance level of 0.025. c. A recent sample of size 15 produced a variance of 56.9. Test to determine if the variance has changed using a significance level of 0.10. a. Formulate the null and alternative hypotheses. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) O A. Ho: o2 2 ОВ. Họ: OC. Ho: o? O D. Ho: o2 = HA: o² = Construct the rejection region and define the decision rule. (Round to two decimal places as needed.) O A. Ifx? > xổos = O B. If? > xổ.025 OC. If? HA o? < Oc. O D. Ho o2 = Но HA: o2 = HA: o2 Construct the rejection region and define the decision rule. (Round to two decimal places as needed.) O A. If x < xố.975 reject the null hypothesis. O B. Ifx > xổ.025 reject the null hypothesis. O C. Ifx? > xảo125 =, or if x? < x3 9876 reject the null hypothesis.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Power Operation

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in representing the distance or size of particular heavenly body. In medical field, it is used to represent very small size. In medical field it helps to mention size of bacteria or virus.

Exponents

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.

Question

Please make sure to do the rounding when it's needed.

Historical data indicate that the standard deviation of a process is 6.4.
a. A recent sample of size 27 produced a variance of 61.9. Test to determine if the variance has increased using a significance level of 0.05.
b. A recent sample of size 9 produced a variance of 8.64. Test to determine if the variance has decreased using a significance level of 0.025.
C. A recent sample of size 15 produced a variance of 56.9. Test to determine if the variance has changed using a significance level of 0.10.
a. Formulate the null and alternative hypotheses. Select the correct choice below and fill in the answer boxes to complete your choice.
(Type integers or decimals. Do not round.)
O A. Ho: o2 2
ОВ. Но-
HA: o2<
HA: 02>
OC.
Но
O D. Ho: o2 =
HA: o2 =
HA
Construct the rejection region and define the decision rule.
(Round to two decimal places as needed.)
O A. Ifx? > xổ.05
O B. Ifx > xổ.025
O C. Ifx < xổ 95
reject the null hypothesis.
or if x < x6 975 =|
reject the null hypothesis.
reject the null hypothesis.
Compute the test statistic.
(Round to two decimal places as needed.)
Reach a decision and draw a conclusion.
Because x is
the rejection region,
v the null hypothesis and
that the variance of the process has
b. Formulate the null and alternative hypotheses.
(Type integers or decimals. Do not round.)
O A. Ho: o2s
ОВ. Но-
HA: o2>
HA: o2 <
Oc.
Но
O D. Ho: o2 =
Ha: o2
HA: o² ±
Construct the rejection region and define the decision rule.
(Round to two decimal places as needed.)
O A. If x? < xổ 975 =
O B. If y > xo.025
reject the null hypothesis.
reject the null hypothesis.
OC. If x? > xổ.0125
or if x? < xổ 9875
reject the null hypothesis.

Compute the test statistic.
(Round to two decimal places as needed.)
Reach a decision and draw a conclusion.
Because x is
v the rejection region,
v the null hypothesis and
V that the variance of the process has
c. Formulate the null and alternative hypotheses.
(Type integers or decimals. Do not round.)
O A. Ho: o? +
O B. Ho: o? 2
HA: o2 =
O C. Ho: o2 =
O D. Ho: o s
HA:
HA: 02
Construct the rejection region and define the decision rule.
(Round to two decimal places as needed.)
O A. If x? > xổ 10
O B. If x? > xổ.05
OC. If? < xổ 90
reject the null hypothesis.
, or if x2 <
reject the null hypothesis.
reject the null hypothesis.
Compute the test statistic.
(Round to two decimal places as needed.)
Reach a decision and draw a conclusion.
Because x is
v the rejection region,
V the null hypothesis and
that the variance of the process has

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