(d) What is the test statistic? What is the p-value?Since the population standard deviation is known, a z test statistic will be calculated. Recall that the test statistic, for a hypothesis iscalculated as follows where x is the sample mean, μo is the hypothesized population mean, ao is the population standard deviation, andn is the sample size.Z =OZ =We have already determined that x = 832, o = 150, and n = 100. The value for μ is the historical mean examination score of 800, soHo=Use these values to calculate the z test statistic, rounding the result to two decimal places.x - Honx - Ho832-0√n150100

Given that, μ0=800x¯=832σ=150n=100 To find the test statistic value.

Answered: Use these values to calculate the z…

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

Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1101 adults, 82% said that they have a cell phone. Find the value of the test statistic. LEEB The value of the test statistic is (Round to two decimal places as needed.)
A claim is made that the proportion of children who play sports is 0.563, and the sample statistics include 1,244 subjects with 31% saying that they play a sport. Find the z value. (Round final answer to four decimal places)
In a survey from a certain year, the range of annual salaries reported was from $73,187 to $336,550. But do CEO salaries differ across the two most populous states in the United States? Consider the salaries from that year for CEOs who work for companies headquartered in California and Texas as provided in the following table. CEO Salaries (in $1,000s) California Texas $319 $92 $119 $214 $140 $159 $181 $246 $317 $198 $261 $305 $123 $185 $132 $202 $273 $90 $304 $179 $226 $208 $194 $109 Use α = 0.05 and test to determine whether the distribution of CEO salaries is the same for California and Texas. What is your conclusion?
The mean score for Scrabble players at the neighborhood center is m = 215 points. The players read a book that claims it can raise scores significantly. After reading the book, a team of 25 players obtains a score of M = 218 points, with s= 25. Do the data indicate that reading the book leads to increases in the players’ scores? Test with a = .05 Calculate and evaluate Cohen’s d and r2. What decision can you make and what does it indicate? What type of error could you be making and what would that mean? Report your results with an APA-style phrase.
The worldwide market share for a web browser was 20.5% in a recent month. Suppose that a sample of 200 random students at a certain university finds that 50 use the browser. Calculate the test statistic. ZSTAT=______ (Type an integer or a decimal. Round to two decimal places as needed.)
Which level of significance of Chi-Square would be significant, more significant, and not significant, and why? (.10, 01, .001)
Claim: : P = 0.23; a 0.10; Sample Statistics : P = 0.17₁ n = 100 A.) Find the 2- test static. Select the Correct Choice below and, if necessary, fill in the answer box to Complete Your choice. 2 = ( Round to two decimal places as needed) 0 3.) What is the result of the test Reject or fail to reject? ?
In a poll of 1500 adults in July 2010, 780 of those polled said that schools should ban sugary snacks and soft drinks. Complete parts a and b below. 1. Find the value of the test statistic z. z = _____ (Round to two decimal places as needed.) 2. Find the value of the corresponding p-value for this test statistic z. p-value = _____ (Round to three decimal places as needed.) 3. Do you reject or not reject the null hypothesis? 4. b. Choose the best interpretation of the results you obtained in part a.
Use technology to find the chi-squared test statistic. x = (Round to the nearest integer as needed.) %3D and whether Marijuana Yes b) reporting all Cigarettes Yes No 924 582 No 47 737 ther Marijuana Yes ng all Cigarettes Yes No 924 582 No 47 737 Marijuana Cigarettes Yes No Yes 61.4 % 38.6 % No 6.0 % 94.0 %
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones assume that you want 99% confidence that your area is no more than 0.045
Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1041 adults, 88% said that they have a cell phone. Find the value of the test statistic. Question content area bottom Part 1 The value of the test statistic is enter your response here. (Round to two decimal places as needed.)
A=0.05 Find the test statistic

SEE MORE QUESTIONS

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

Use these values to calculate the z test statistic, rounding the result to two decimal places. x - Ho