Question
Please answer all
Question 33 1 pts If the significance level for a hypothesis test is 0.01 and the p-value for the test ends up being 0.0034,
You may use the following formula card and open/use (click the little magnify icon) the following tables for this exam: Z-tab
Question 31 1 pts A company that manufactures CFL light bulbs claims their bulbs have an average operating cost equal to $90
0 0
Add a comment Improve this question Transcribed image text
Answer #1

31)

population mean μ= 90
sample mean 'x̄= 85.750
sample size    n= 28
std deviation s= 16.2000
std error ='sx=s/√n=16.2/√28= 3.0615
t statistic ='(x̄-μ)/sx=(85.75-90)/3.062= -1.388

Test statistie: -1.39. Critical values: +2.052. Conclusion: Do not reject the claim the costs are equal to $90.

32)

Rejecting the idea that the average weight of these hens is less than or equal to 29 pounds when that idea is in fact true.

33)

Since we rejected the null, we rejected the null, we might have committed a type one error.

Add a comment
Know the answer?
Add Answer to:
Please answer all Question 33 1 pts If the significance level for a hypothesis test is...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Question 29 1 pts If a test of hypothesis is conducted at a 0.05 level of...

    Question 29 1 pts If a test of hypothesis is conducted at a 0.05 level of significance and the p-value resulting from the analysis is 0.092. The conclusion is: Reject the null hypothesis Fail to reject the null hypothesis Reject the alternative hypothesis Question 30 1 pts If a test of hypothesis is conducted at a 0.05 level of significance and the p-value resulting from the analysis is 0.092. The potential type of statistical error is: Type Il error Type...

  • You wish to test the following claim (H) at a significance level of a = 0.001....

    You wish to test the following claim (H) at a significance level of a = 0.001. H:u= 89.1 H :u + 89.1 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 89.3 88.7 102 95.9 84.6 99.8 93.9 88.3 96.9 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = = What is the test statistic for this...

  • You wish to test the following claim (H) at a significance level of a = 0.10....

    You wish to test the following claim (H) at a significance level of a = 0.10. Họ: A = 82.4 H: > 82.4 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 87.8 79.2 79.2 87.8 76.9 99.3 86.7 91.3 87.4 88.7 78.6 84 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = What is the test...

  • You wish to test the following claim ( H a ) at a significance level of...

    You wish to test the following claim ( H a ) at a significance level of α = 0.002 . H o : p 1 = p 2 H a : p 1 > p 2 You obtain 45.2% successes in a sample of size n 1 = 217 from the first population. You obtain 33.3% successes in a sample of size n 2 = 727 from the second population. For this test, use the normal distribution as an approximation...

  • You wish to test the following claim (H1) at a significance level of α=0.002α=0.002. For the...

    You wish to test the following claim (H1) at a significance level of α=0.002α=0.002. For the context of this problem, d=x2−x1 where the first data set represents a pre-test and the second data set represents a post-test.       Ho:μd=0       H1:μd≠0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=23 subjects. The average difference (post - pre) is ¯d=−4.1 with a standard deviation of the...

  • = 0.10. You wish to test the following claim (H) at a significance level of a...

    = 0.10. You wish to test the following claim (H) at a significance level of a Ho 55.5 H1 55.5 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 56.8 73.6 92.6 87.7 44.2 52.2 81.2 66.7 98.1 64.1 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value= What is the test statistic for this sample? (Report answer...

  • You wish to test the following claim (H1) at a significance level of α=0.002α=0.002. For the...

    You wish to test the following claim (H1) at a significance level of α=0.002α=0.002. For the context of this problem, d=x2−x1 where the first data set represents a pre-test and the second data set represents a post-test.       Ho:μd=0       H1:μd>0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=22 subjects. The average difference (post - pre) is ¯d=32 with a standard deviation of the...

  • You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. For the...

    You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. For the context of this problem, μd=μ2−μ1μd=μ2-μ1 where the first data set represents a pre-test and the second data set represents a post-test.       Ho:μd=0Ho:μd=0       Ha:μd>0Ha:μd>0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=8n=8 subjects. The average difference (post - pre) is ¯d=5.2d¯=5.2 with a standard deviation of the...

  • You wish to test the following claim (H1H1) at a significance level of α=0.001α=0.001. For the...

    You wish to test the following claim (H1H1) at a significance level of α=0.001α=0.001. For the context of this problem, d=x2−x1d=x2-x1 where the first data set represents a pre-test and the second data set represents a post-test.       Ho:μd=0Ho:μd=0       H1:μd>0H1:μd>0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=148n=148 subjects. The average difference (post - pre) is ¯d=1.7d¯=1.7 with a standard deviation of the...

  • You wish to test the following claim ( H a ) at a significance level of...

    You wish to test the following claim ( H a ) at a significance level of α = 0.05 . H o : p 1 = p 2 H a : p 1 ≠ p 2 You obtain 63.1% successes in a sample of size n 1 = 203 from the first population. You obtain 80.9% successes in a sample of size n 2 = 230 from the second population. For this test, you should NOT use the continuity correction,...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT