{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

melexcel2 - t-distribution Significance level = 0.05 Ho μ...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
A-1.)Create a 95 percent confidence interval for the mean Value variable t - Confidence Interval Estimate Confidence Level 0.95 Sample Mean 195.11 Sample SD 29.6219321 Sample size 30 Critical value 2.04522961 The 0.95 confidence interval estimate: Lower value 184.049 Upper value 206.171 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
A-2.) Create a 90 percent confidence interval for the mean Value. t - Confidence Interval Estimate Confidence Level 0.9 Sample Mean 195.11 Sample SD 29.6219321 Sample size 30 Critical value 1.699127 The 0.9 confidence interval estimate: Lower value 185.921 Upper value 204.299 2
Image of page 2
B-1.) Confidence Intervals for the population proportion of houses that have a fireplace. p - Confidence Interval Estimate Confidence Level 0.9 # of success in sample 8 Sample size 30 Sample Proportion 0.26666667 Critical value 1.64485363 The 0.9 confidence interval estimate: Lower value 0.13386556 Upper value 0.39946778 3
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
C-1.) Hypotheses Tests for the mean Taxes Variable-First Hypotheses Test Hypothesis test for the Mean using the
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: t-distribution Significance level = 0.05 Ho: μ = 3500 Sample mean = 3061.6 Sample SD = 763.224087 Sample size = 30 Test statistic =-3.14614768 Two tailed test Lower critical value-2.0452 Upper critical value 2.0452 p-value 0.00380628 Lower tailed test critical value-1.699127 p-value 0.00190314 Upper tailed test critical value 1.699127 p-value 0.99809686 4 C-1.) Hypotheses Test for the mean Taxes Variable- Second Hypotheses Test Hypothesis test for the Mean using the t-distribution Significance level = 0.1 Ho: μ = 3200 Sample mean = 3061.6 Sample SD = 763.224087 Sample size = 30 Test statistic =-0.99321816 Two tailed test Lower critical value-1.6991 Upper critical value 1.6991 p-value 0.32881916 Lower tailed test critical value-1.31143365 p-value 0.16440958 Upper tailed test critical value 1.31143365 p-value 0.83559042 5...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern