Manufacturer of a CNC machine claims that the average warm-up time for their machine is 10 minutes. We would like to test this claim at a 0.10 significance level and therefore run 10 trials that result in the following warm-up durations (in minutes). Warm-up durations are assumed to follow a Normal distribution. 10.6, 9.8, 10.6, 10.4, 10.4, 10.5, 9.9, 9.8, 10.6, 10.3. Click here to view page 1 of the table of critical values of the t-distribution Click here to view page 2 of the table of critical values of the t-distribution O E. H,: u< 10 against H,: p= 10 OF. Hi u# 10 against H,: u= 10 (b) The calculated t value is 2.77. (Round to two decimal places including any zeros.) (c) Choose the correct critical region below. (Round to two decimal places including any zeros.) OA t< O B. t> C. t< - 1.83 ort> 1.83 (d) Choose the correct conclusion below. O A. Reject the null hypothesis because the average warm-up time is significantly different from 10 minutes. O B. Reject the null hypothesis because the average warm-up time is not significantly different from 10 minutes. O C. Do not reject the null hypothesis because the average warm-up time is not significantly different from 10 minutes. O D. Do not reject the null hypothesis because the average warm-up time is significantly different from 10 minutes. Activate Windows Go to Settings to activate Windows. 2 Click to select your answer(s) and then click Check Answer. All parts showing Clear ll Final Check
Manufacturer of a CNC machine claims that the average warm-up time for their machine is 10 minutes. We would like to test this claim at a 0.10 significance level and therefore run 10 trials that result in the following warm-up durations (in minutes). Warm-up durations are assumed to follow a Normal distribution. 10.6, 9.8, 10.6, 10.4, 10.4, 10.5, 9.9, 9.8, 10.6, 10.3. Click here to view page 1 of the table of critical values of the t-distribution Click here to view page 2 of the table of critical values of the t-distribution O E. H,: u< 10 against H,: p= 10 OF. Hi u# 10 against H,: u= 10 (b) The calculated t value is 2.77. (Round to two decimal places including any zeros.) (c) Choose the correct critical region below. (Round to two decimal places including any zeros.) OA t< O B. t> C. t< - 1.83 ort> 1.83 (d) Choose the correct conclusion below. O A. Reject the null hypothesis because the average warm-up time is significantly different from 10 minutes. O B. Reject the null hypothesis because the average warm-up time is not significantly different from 10 minutes. O C. Do not reject the null hypothesis because the average warm-up time is not significantly different from 10 minutes. O D. Do not reject the null hypothesis because the average warm-up time is significantly different from 10 minutes. Activate Windows Go to Settings to activate Windows. 2 Click to select your answer(s) and then click Check Answer. All parts showing Clear ll Final Check
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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could you please help with part D? all parts are already solved only d is wrong so i just need D . thanks
Transcribed Image Text:Manufacturer of a CNC machine claims that the average warm-up time for their machine is 10 minutes. We would like to test this claim at a 0.10 significance level and therefore run 10 trials that result in the following warm-up durations (in minutes). Warm-up
durations are assumed to follow a Normal distribution.
10.6, 9.8, 10.6, 10.4, 10.4, 10.5, 9.9, 9.8, 10.6, 10.3 D
Click here to view page 1 of the table of critical values of the t-distribution.
Click here to view page 2 of the table of critical values of the t-distribution.
ΟΕ. Ηo: μ< 10 against H μ 0
OF. H,: µ# 10 against H,: µ= 10
(b) The calculated t value is 2.77. (Round to two decimal places including any zeros.)
(c) Choose the correct critical region below. (Round to two decimal places including any zeros.)
O A. t<
O B. t>
C. t< - 1.83 or t> 1.83
(d) Choose the correct conclusion below.
O A. Reject the null hypothesis because the average warm-up time is significantly different from 10 minutes.
O B. Reject the null hypothesis because the average warm-up time is not significantly different from 10 minutes.
O C. Do not reject the null hypothesis because the average warm-up time is not significantly different from 10 minutes.
O D. Do not reject the null hypothesis because the average warm-up time is significantly different from 10 minutes.
Activate Windows
Click to select your answer(s) and then click Check Answer.
Go to Settings to activate Windows.
All parts showing
Clear All
Final Check
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