(b) recheck Point estimate: 7,241 Sample standard deviation: 1,436 critical value: 1,833 Calculate 0.000 2.000 Based on the sample, plot the confidence interval of the 90%for the population mean of all lengths of adult male killer whales. • Enter the upper bound and lower bound values on the graph to display the confidence interval. • Under the dot (), enter the statementfrom the article. try one last time Error range: 0.832 Confidence interval of 90%: 7,241±0.832 4.000 90% confidence interval: 6.409 6.000 7.241 8.073 critical values os 3,250 040=2,821 45 2,262 o 1,833 160=1,383 8.000 10.000 save for later
(b) recheck Point estimate: 7,241 Sample standard deviation: 1,436 critical value: 1,833 Calculate 0.000 2.000 Based on the sample, plot the confidence interval of the 90%for the population mean of all lengths of adult male killer whales. • Enter the upper bound and lower bound values on the graph to display the confidence interval. • Under the dot (), enter the statementfrom the article. try one last time Error range: 0.832 Confidence interval of 90%: 7,241±0.832 4.000 90% confidence interval: 6.409 6.000 7.241 8.073 critical values os 3,250 040=2,821 45 2,262 o 1,833 160=1,383 8.000 10.000 save for later
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:(b): Your answer is wrong.
Assume that the population lengths of adult male killer whales follow approximately a normal distribution. A recent article published in the journal Zoology Now
states that the mean of this population is6.99 m. You want to test the claim in the article, so you select a random sample of 10adult male killer whales and record
the lengths of each.
Follow these steps to construct a confidence interval for the90%for the population mean of all lengths of adult male killer whales. Then, indicate whether the
confidence interval that you construct contradicts the article's statement. (If necessary, you can refer to a list of formulas .)
(to) Click "Take Sample" to see the results of your random sample.
Take a sample
Sample size:
10
number of killer whales
Point estimate:
7241
10
sample mean
7,241
sample standard
Enter the values for the sample size, point estimate of the mean, sample standard deviation, and critical value that you need to construct the
confidence interval for the 90%. (Choose the correct critical value from the critical value table provided). When finished, click on "Calculate".
Standard error:
0.454
deviation
1,436
X
Ś
Transcribed Image Text:(b)
recheck
Point estimate:
7,241
Sample standard deviation:
1,436
critical value:
1,833
Calculate
0.000
2.000
try one last time
Error range:
0.832
Based on the sample, plot the confidence interval of the90%for the population mean of all lengths of adult male killer whales.
• Enter the upper bound and lower bound values on the graph to display the confidence interval.
• Under the dot (), enter the statementfrom the article.
Confidence interval of90%:
7,241+0.832
4.000
90% confidence interval:
6.409
6.000
7.241
8.073
critical values
10045 3,250
8.000
Yo040=2,821
Y0045=2,262
YO30=1,833
160 1,383
10.000
save for later
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