Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values ofthe test statistic that would result in rejection of the null hypothesis.10) A farmer has decided to use a new additive to grow his crops. He divided his farm into 10 plotsand kept records of the corn yield (in bushels) before and after using the additive. The results are10)shown below.Plot:46.9.10Before 986.81011After109.106.101012You wish the test the following hypothesis at the 1 percent level of significance.H0: Hd = 0 against H1: µd > 0.What decision rule would you use?A) Reject Ho if test statistic is less than 2.821.B) Reject Ho if test statistic is greater than -2.821.C) Reject Ho if test statistic is greater than 2.821.D) Reject Ho if test statistic is greater than -2.821 or less than 2.821.

Solution: The null and alternative hypotheses are: Since the alternative hypothesis contains the…

Answered: Determine the decision criterion for…

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

I need help with these two problems
create a hypothesis to test Depression among school age children 6yrs.-13yrs.old during the covid-19 quarantine in california. With age, ethnicity, location, and gender as variables. State variables as specifically as possible 2. List the Hypotheses as learned in this class 3.Type of statistical analysis that would be used and explain thoroughly why.
How would I solve this problem?
1 PROBLEM 2 545 WN- 3 6 7 8 9 10 11 12 SET. Table 2.2 shows the frequency distribution of the time(hours per week) rendered by doctors and nurses X NURSES 40-49 50-59 60-69 70-79 TOTAL time 70-79 Y 5 10 15 DOCTORS 60-69 4 9 5 19 50-59 6 6 2 17 40-49 5 4 12 TOTAL 15 24 17 + A. The number of health workers who rendered 70-79hrs(nurses) and 50-69hrs(doctors). 1 33N 7
A researcher is interested in the effect of the pandemic on social media use among college students. The researcher hypothesizes that college students spend more time on social media thanthey did before the pandemic. To test his hypothesis, he randomly selected 50 college students and asked how many hours do they spend on social media per day before and after the pandemic. a) What is the research question? b) What is/are the variable(s)? What graphs can be used to display the variable(s) visually? c) What statistical test can be used to answer the research question?
1. For each row of the table you are given a p-value and a level of significance (a). Determine which hypothesis is supported, if the data are significant and which type error could be made. If a given p- value is not a valid p-value (because it is greater than 1), put an x in each box in therow. p-value Hypothesis Họ or H1 Significant or Not Significant Error Type I or Type II 0.043 0.05 0.32 0.05 0.043 0.01 0.0035 0.01 0.043 0.10 0.15 0.10 5.6 x 106 0.05 7.3256 0.01 2. For the hypothesis test, write the concluding sentence in the form used by researchers. Context: Support paying off student dept, H1: p 8 ft, p-value-5.6 x 10°, a=0.05, n=56. 4. For the hypothesis test, write the concluding sentence in the form used by researchers. Context: Blood pressure for men and women, H1: Hw # HM ft, p-value3D0.0035, a=0.01, n=2403.
3. Can SAT scores predict college performance? Let x be a variable that represents SAT score of a computer science major, and let y be a variable that represents a student’s GPA upon graduation. A random sample of n =15 computer science majors provided their SAT scores and GPAs: x 1232 1070 1086 1287 1130 1048 1121 1095 1135 1208 1333 1160 1186 1243 1261 y 3.52 2.91 2.4 3.47 3.47 2.37 2.4 2.24 3.02 3.32 3.59 2.54 3.19 3.71 3.58 The scatter diagram for the SAT score and GPA is given below: (a) Find the sample correlation coefficient r. Truncate to two decimal places. What does the value tell you about the data? (b) Find the equation of the least squares line . Truncate to four decimal places. What does the slope mean? (c) Find the value of the coefficient of determination . Truncate to two decimal places. What does this number mean? (d) What is the predicted GPA if a computer science major got a…
part F G
Data analysts prefer to deal with random sampling error rather than statistical bias because A. All data analysts are fair people B. There is no statistical method for managing statistical bias C. They do not want to be accused of being biased in today's society D. Random sampling error makes their work more satisfying E. All of the above F. None of the above
The role of the covariate is to: a.Compare variables of interest without a nuisance variable masking true differences. b.Reduce within-wroup error variance and help eliminate confounding variable bias. c.To determine the predictive power of the independent variable using odds d.A & B
2a. (Data calories.txt) For this problem, focus on the random sample obtained using only treatment 1. What is the average number of calories consumed for children in this group? Use 2 decimals Hint: Don't forget to only use the subset of children that participated in meal prep aration. 2b. (Data calories.txt only using treatment 1 sample) Based on these data, obtain the standard error for the average of calories consumed by children participating in meal preparation. Enter the value using two decimals. Hint 2: The R command length() may be useful to find the appropriate sample size. 2c. (Data calories.txt only using treatment 1 sample) A researcher would like to show that children participating in meal preparation (treatment 1) consume more than 400 calories, on average. Use the results obtained in the previous two questions and obtained the test statistic. Enter it here using two decimals. 2d. (Data calories.txt only using treatment 1 sample) A researcher would like to show that…
Q.4. In a study conducted to compare the yields of 4 treatments, the experimenter uses a plot with 4 rows and 4 columns. Which design is most likely to be used? Also, calculate the error, df.

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