You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean defined as μ₁ and process 2 has a mean defined as μ2. The null and alternative hypotheses are H₂: μ₁ −μ₂ ≤0 and H₁: ₁-₂ > 0. The process variances are unknown but assumed to be equal. Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are 60 and 50 for populations 1 and 2 respectively. Complete parts a through d below. Click the icon to view a table of critical values for the Student's t-distribution. a. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from process 1 is 28 and from process 2 is 23? The test statistic is t=. (Round to three decimal places as needed.)
You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean defined as μ₁ and process 2 has a mean defined as μ2. The null and alternative hypotheses are H₂: μ₁ −μ₂ ≤0 and H₁: ₁-₂ > 0. The process variances are unknown but assumed to be equal. Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are 60 and 50 for populations 1 and 2 respectively. Complete parts a through d below. Click the icon to view a table of critical values for the Student's t-distribution. a. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from process 1 is 28 and from process 2 is 23? The test statistic is t=. (Round to three decimal places as needed.)
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 5E
Related questions
Question
![You have been asked to determine if two different production processes have different mean numbers of units produced per hour.
Process 1 has a mean defined as µ₁ and process 2 has a mean defined as µ2. The null and alternative hypotheses are Hỏ: µ₁ −µ₂ ≤0
and H₁: ₁-₂ > 0. The process variances are unknown but assumed to be equal. Using random samples of 36 observations from
process 1 and 49 observations from process 2, the sample means are 60 and 50 for populations 1 and 2 respectively. Complete parts a
through d below.
Click the icon to view a table of critical values for the Student's t-distribution.
a. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from process 1 is 28
and from process 2 is 23?
The test statistic is t =
(Round to three decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5bd58a6b-b697-4d58-be85-387236e19a01%2F976367a8-2334-4e01-a9a3-f0093cb3676d%2Fuwkmisc_processed.png&w=3840&q=75)
Transcribed Image Text:You have been asked to determine if two different production processes have different mean numbers of units produced per hour.
Process 1 has a mean defined as µ₁ and process 2 has a mean defined as µ2. The null and alternative hypotheses are Hỏ: µ₁ −µ₂ ≤0
and H₁: ₁-₂ > 0. The process variances are unknown but assumed to be equal. Using random samples of 36 observations from
process 1 and 49 observations from process 2, the sample means are 60 and 50 for populations 1 and 2 respectively. Complete parts a
through d below.
Click the icon to view a table of critical values for the Student's t-distribution.
a. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from process 1 is 28
and from process 2 is 23?
The test statistic is t =
(Round to three decimal places as needed.)
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Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
![You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean
defined as μ₁ and process 2 has a mean defined as µ₂. The null and alternative hypotheses are H₂: μ₁ −μ₂ ≤0 and H₁ : µ₁ − µ₂ > 0. The process variances
are unknown but assumed to be equal. Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are
60 and 50 for populations 1 and 2 respectively. Complete parts a through d below.
Click the icon to view a table of critical values for the Student's t-distribution.
THIV IVVI VIMUVUV IVA
Since the test statistic is
IV
The test statistic is t =
MITM IV
ܝ
The critical value(s) is(are) 1.663.
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
greater than t + ny – 2,0 ²
reject Ho.
c. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from process 1 is 32 and from process 2 is
34?
SEVILTIMI provv/
(Round to three decimal places as needed.)](https://content.bartleby.com/qna-images/question/5bd58a6b-b697-4d58-be85-387236e19a01/bfa81158-2fc6-41f6-8960-8634521c1f67/0wfh4i8_thumbnail.png)
Transcribed Image Text:You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean
defined as μ₁ and process 2 has a mean defined as µ₂. The null and alternative hypotheses are H₂: μ₁ −μ₂ ≤0 and H₁ : µ₁ − µ₂ > 0. The process variances
are unknown but assumed to be equal. Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are
60 and 50 for populations 1 and 2 respectively. Complete parts a through d below.
Click the icon to view a table of critical values for the Student's t-distribution.
THIV IVVI VIMUVUV IVA
Since the test statistic is
IV
The test statistic is t =
MITM IV
ܝ
The critical value(s) is(are) 1.663.
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
greater than t + ny – 2,0 ²
reject Ho.
c. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from process 1 is 32 and from process 2 is
34?
SEVILTIMI provv/
(Round to three decimal places as needed.)
Solution
Follow-up Question
![You have been asked to determine if two different production processes have different mean numbers of units produced
per hour. Process 1 has a mean defined as µ₁ and process 2 has a mean defined as µ₂. The null and alternative
hypotheses are Ho: H₁ H₂ ≤0 and H₁: μ₁ −μ₂ > 0. The process variances are unknown but assumed to be equal.
Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are
60 and 50 for populations 1 and 2 respectively. Complete parts a through d below.
Click the icon to view a table of critical values for the Student's t-distribution.
The test statistic is t = 1.806. (Round to three decimal places as needed.)
The critical value(s) is(are) 1.663.
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
reject Ho.
Since the test statistic is
greater than
The test statistic is t =
tnx + My-
-2,α¹
b. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from
process 1 is 21 and from process 2 is 30?
(Round to three decimal places as needed.)](https://content.bartleby.com/qna-images/question/5bd58a6b-b697-4d58-be85-387236e19a01/31a827e9-0d14-41f5-a577-8d6c4e6df587/3gce77p_thumbnail.png)
Transcribed Image Text:You have been asked to determine if two different production processes have different mean numbers of units produced
per hour. Process 1 has a mean defined as µ₁ and process 2 has a mean defined as µ₂. The null and alternative
hypotheses are Ho: H₁ H₂ ≤0 and H₁: μ₁ −μ₂ > 0. The process variances are unknown but assumed to be equal.
Using random samples of 36 observations from process 1 and 49 observations from process 2, the sample means are
60 and 50 for populations 1 and 2 respectively. Complete parts a through d below.
Click the icon to view a table of critical values for the Student's t-distribution.
The test statistic is t = 1.806. (Round to three decimal places as needed.)
The critical value(s) is(are) 1.663.
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
reject Ho.
Since the test statistic is
greater than
The test statistic is t =
tnx + My-
-2,α¹
b. Can you reject the null hypothesis, using a probability of Type I error x = 0.05, if the sample standard deviation from
process 1 is 21 and from process 2 is 30?
(Round to three decimal places as needed.)
Solution
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