A. A random sample of 100 recorded deaths in the United State during the past year showed an average life span of71.8 years. Assuming a population standard edition of 8.9 years, does this seem to indicate that the mean life spantoday is greater than 70 years? Use a 0.05 level of significance. Using the five-step procedure resultsx-uhint: z =1. State the null and alternative hypothesisH:H:a2. State the Level of significance/ degree of freedom3. Use the appropriate test statistics4. State the critical or rejection region5. Make your conclusion and recommendation

According to policy we supposed to answer three part Please repost question for remaining

Answered: A. A random sample of 100 recorded…

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

Given data: population mean = 25, sample mean = 22, standard deviation = 9.4, sample size = 55, level of significance is 0.05. Complete and interpret a 5 step hypothesis by hand using a Z-test and show each step of your work
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z test to perform the required hypothesis test at the 1% signifigance level. Find the test statistic and p-value. Do we reject or fail to reject? x bar=17 n=36 standard deviation=6 Ho: mean=21 Ha: mean <21
i need C and D
Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ=52,500; α=0.10 Sample statistics: x=52,691, s=1900, n=17 LOADING... Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. A. H0: μ≠52,500 Ha: μ=52,500 B. H0: μ≤52,500 Ha: μ>52,500 C. H0: μ=52,500 Ha: μ≠52,500 D. H0: μ≥52,500 Ha: μ<52,500 What is the value of the standardized test statistic? The standardized test statistic is nothing. (Round to two decimal places as needed.) What is(are) the critical value(s)? The critical value(s) is(are) nothing. (Round to three decimal places as needed. Use a comma to separate answers as needed.) Decide whether to reject or fail to reject the null hypothesis. A. Fail to reject H0.…
Is the difference between the mean annual salaries of entry level architects in Denver, Colorado, and Lincoln, Nebraska, equal to $10,500? To decide, you select a random sample of entry level architects from each city. The results of each survey are shown. Assume the population standard deviations are o₁ =$6511 and 2 = $6192. At a = 0.01, what should you conclude? Entry level architects Entry level architects in Denver, CO x₁ = 58,300 n₁ = 39 In Lincoln, NE x2 = 54,240 n2 = 30 What are the null and alternative hypotheses for this test? OA. Ho: H₁₂ = 10,500 Ha: H₁-H2*10,500 OD. Ho: P₁-H2>10,500 Ha: H1-H₂s 10,500 Calculate the standardized test statistic. z= (Round to two decimal places as needed.) Determine the P-value. The P-value is (Round to three decimal places as needed.) What can you conclude about the data? OB. Ho: H1 H2S 10,500 Ha H1-H2>10,500 OC. Ho: H1 H2210,500 Ha H1-H2 <10,500 OE. Ho: H1 H2*10,500 Ha: 1-2=10,500 OA. Reject Ho. At the 1% level of significance, there is…
Use a t-test to test the claim about the population mean u at the given level of significance a using the given sample statistics. Assume the population is normally distributed. Claim: u = 52,400; a 0.05 Sample statistics: x = 53,625, s 2700, n 20 %3D Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. O A. Ho H= 52,400 H3i H#52,400 O B. Ho: µz 52,400 Ha =52,400 O C. Ho H252,400 Ha H 52,400 Click to select your answer and then click Check Answer. Check Answer Clear All 3 parts 3 femaining <. 曲苓: re to search
A one-sample z-test compares a sample with 50 participants with mean 83 to a population with mean 80 and standard deviation 10. What is the effect size d? 0.1 0.3 0.5 0.7
Calculate a 90% lower confidence bound for the population mean using the following sample statistics: x=118.7 , s= 136.0 , n=37. Use one-decimal place accuracy.

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