Systolic blood pressurelevel above 120 mm Hg areconsidered to be too high. For the300 systolic blood pressure is a meanof 122.96 mm Hg and the standarddeviation is 15.85169 mm Hg. Usingthe significance level of a=0.01 totest the claim that the sample is froma population with a mean greaterthan 120 mm Hg.a)Identify thealternative hypotheses.Find the value of the testnullandb)statistic.c)d)Find the critical value.Using the significance levelof a = 0.01, should we rejectH, or should we fail to rejectH,?

Given,sample size(n)=300sample mean(x¯)=122.96standard deviation(s)=15.85169degrees of freedom…

Answered: Systolic blood pressure level above 120…

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

Similar questions

A random sample of 100 pumpkins is obtained and the mean circumferenceis found to be 40.5 cm and standard deviation 1.6 cm. Use a 0.05 significance level to test the claim that the mean circumference of all pumpkins is equal to 39.9 cm.
The mean serum-creatinine level measured in 13 patients 24 hours after they received a newly proposed antibiotic was 1.1 mg/dL. (a) 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. State the null and alternative hypotheses (in mg/dL). (Enter != for ≠ as needed.)
A company that manufactures steel wires guarantees that the mean breaking strength (in kN) of the wires is greater than 50. They measure the strengths for a sample of wires and test H0 : μ ≤ 50 versus H1 : μ > 50. a) If a Type I error is made, what conclusion will be drawn regarding the mean breaking strength? b) If a Type II error is made, what conclusion will be drawn regarding the mean breaking strength?
A sample of 900 members is found to have a mean of 3.47 cm. Can it be reasonably regarded as a simple sample from a large population with mean 3.23 cm. and standard deviation 2.31 cm.? Test at 5% and 10% level of significance.
The mean salary of federal government employees on the General Schedule is $59,593. The average salary of 34 state employees who do similar work is $59,070 with =σ $1500. At the 0.10 level of significance, can it be concluded that state employees earn on average less than federal employees? State the hypotheses and identify the claim with the correct hypothesis.
A sample of 100 observations has a sample mean of 500 and a sample standard deviation of 50. Conduct a hypothesis test to determine if the population mean is equal to 480 at a significance level of 0.05.
Find the sample size necessary for a 99% confidence level with maximal margin of error E = 2.00 for the mean plasma volume in male firefighters. (Round up to the nearest whole number.) male firefighters=
A sample of 50 Denver employees yielded a mean distance of 410 miles with a population standard deviation of 40 miles. A sample of 45 Salt Lake City employees yielded a mean distance of 399 miles with a population standard deviation of 34 miles. If we were to conduct a Hypothesis test at a .05 significance level, what would be the correct test statistic rounded to two decimal places?
A simple random sample of 35 horror has a mean duration of 107.3 minutes and the sample sandard deviation of song lengths is 17.8 minutes. Use a 0.05 significance level a) Use the TRADITIONAL METHOD to test the claim that the sample is from a population of movies with a mean greater than 100 minutes. b) What does the conclusion mean?
State the statistical hypotheses against a population with a mean of 90 for a one-tailed test where scores are expected to be lower than the population.
Use the pulse rates in bpm of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 74 bpm. Use a 0.10 significance level.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

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

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS