Homework Help is Here – Start Your Trial Now!
Math
Statistics
percentile of a t distribution with 54 df.

percentile of a t distribution with 54 df.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

please only answer 7.8

**Renal Disease** The mean serum-creatinine level measured in 12 patients 24 hours after they received a newly proposed antibiotic was 1.2 mg/dL. **7.1** If the mean and standard deviation of serum creatinine in the general population are 1.0 and 0.4 mg/dL, respectively, then, using a significance level of 0.05, test whether the mean serum-creatinine level in this group is different from that of the general population. **7.2** What is the p-value for the test? **7.3** Suppose the sample standard deviation of serum creatinine in Problem 7.1 is 0.6 mg/dL. Assume that the standard deviation of serum creatinine is not known, and perform the hypothesis test in Problem 7.1. Report a p-value. **7.4** Compute a two-sided 95% CI for the true mean serum-creatinine level in Problem 7.3. **7.5** How does your answer to Problem 7.4 relate to your answer to Problem 7.3? **7.6** Suppose \(\frac{\overline{x} - \mu_0}{s / \sqrt{n}} = -1.52\) and a one-sample t test is performed based on seven subjects. What is the two-tailed p-value? **7.7** Use a computer program to compute the probability that a t distribution with 36 df exceeds 2.5. **7.8** Use a computer program to compute the lower 10th percentile of a t distribution with 54 df.
Transcribed Image Text:**Renal Disease** The mean serum-creatinine level measured in 12 patients 24 hours after they received a newly proposed antibiotic was 1.2 mg/dL. **7.1** If the mean and standard deviation of serum creatinine in the general population are 1.0 and 0.4 mg/dL, respectively, then, using a significance level of 0.05, test whether the mean serum-creatinine level in this group is different from that of the general population. **7.2** What is the p-value for the test? **7.3** Suppose the sample standard deviation of serum creatinine in Problem 7.1 is 0.6 mg/dL. Assume that the standard deviation of serum creatinine is not known, and perform the hypothesis test in Problem 7.1. Report a p-value. **7.4** Compute a two-sided 95% CI for the true mean serum-creatinine level in Problem 7.3. **7.5** How does your answer to Problem 7.4 relate to your answer to Problem 7.3? **7.6** Suppose \(\frac{\overline{x} - \mu_0}{s / \sqrt{n}} = -1.52\) and a one-sample t test is performed based on seven subjects. What is the two-tailed p-value? **7.7** Use a computer program to compute the probability that a t distribution with 36 df exceeds 2.5. **7.8** Use a computer program to compute the lower 10th percentile of a t distribution with 54 df.
Expert Solution
Step 1

Given that 

Degree of freedom =df =54

And 10% percentile. 

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS