Source Value Std_Err tIntercept -7770.106 5537.398-1.403Age-18321.65947.4046.785White642.3754308.8470.149Black-1931.911 4664.534 -0.414P_valueO c. remove all race variables0.149While looking into the wage of a teacher, a researcher using Forwards Selection,to find the ideal model. The researcher added 2 race variables (White, andBlack).The next regression results are shown above. What is the next step?O d. remove the White variable<0.00010.3940.366O a. do nothing, the ideal model has been foundO b. remove the Age-18 variable

The provided information is as follows:The regression output is given as…

Answered: Source Value Std_Err t 5537 398 -1.403…

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

The following is a list of 14 measurements. - 13, -6, -45, 53, -3, 83, –23, 79, – 17, -96, – 18, 91, 53, – 13 Send data to calculator Send data to Excel Suppose that these 14 measurements are respectively labeled x,, x,, ..., x: (Thus, -13 is labeled x,, -6 is labeled x,, and so on.) Compute the following. 14 Σ 29х, i = 1
A political action committee is interested in the proportion of all registered voters who will vote "Yes" on a measure to expand the use of solar energy. Match the vocabulary word with its corresponding example. The 1000 registered voters who participated in the study The list of Yes and No answers that were given by the 1000 participants in the study Yes or No for each registered voter The proportion of the 1000 registered voters that were surveyed who will vote Yes on the measure All registered voters in the US The proportion of registered voters who will vote Yes on the measure a. Population b. Variable c. Data d. Sample e. Statistic f. Parameter
(adapted from Johnson, 1980) Each semester, there are seven sections of a particular biology course, taught at various times by various instructors. The table below shows the number of students who selected each of the seven sections in Fall 2016. Do the data suggest that students have a preference for certain sections of the course? Perform a test of hypothesis using a = 0.05. In answering, be sure to address each of the five steps in a test of hypothesis. Number of students 1 18 2 12 3 25 Section 4 23 5 8 6 19 7 14
4 A political poll is assessing the relative strengths of two presidential candidates. A value of + 1 is assigned to every person who states a preference for candidate A and a value of -1 is assigned to anyone who indicates a preference for candidate B.a) Find the sample mean if 60% of those polled indicate a preference for candidate A.b) Write an expression for the sample mean as a function of the sample size and thepercentage of those polled that are in favor of candidate A.c) Find the sample size necessary to estimate the percentage of persons in favor ofcandidate A with a standard deviation no greater than 0. 1 %
11
Define relative frequency and conditional relative frequency
** A The following box-plot shows the time requirel to complete the first examination in Math-101 course for 1000 students, Use this information to answer questions(36.37) 36. The variable is (A) Math - 101 (B) Time (C) First exam (D)1000 students 37.The five-number sumuray are (A) 10,15,25,30,35 (B) 15, 20, 25, 30, 40 ((C) 10, 20, 25. 30, 40 (D) 10, 20, 25.30, 35 38. A data with 1 measurements has( mean=6), median= 5, and mode=3 The range of the data is (A) 11. (B) 8 (C) 3d (D)2 39. Marks on a Math exam have a mound shape distribution. 95% of the marks are between 10 and 24 The mean of the exam marks is (A) 12 (B) 20 (C) 17 (D) 15 40.0ne of the following is consldered to be as measure of position standing (A) a (B) mean (C) median (D) percentiles 41. The median of tbe data set (2.6, 1,10,7) In equal to (A) 0 (B)2 (C) 1 (D)7
Pls help ASAP
Q3 i): A survey of 500 randomly chosenindividualsis conducted. The individuals are askedto nametheir faxorite sport. The STATISTIX pie chart inthe following figure summarizesthe results of this survey Other (5.0%)- Hockey (10.0%)- -Baseball (30.0%) Golf (10.0%)- Footbal (25.0%)- -Basketbal (20.0%) Fig. 2-11 STATISTIX pie chart La) How many individuals inthe 500 gave baseball astheirfavorite sport? (b) How mary gave a sport other than basketball as their favorite sport? L) How many gave hockey or golf astheir favorite sport? ii) Thefollowing table gives the frequency distribution for the cholesterol values of 45 patients ina cardiacrehabilitation study. Givethe IgweLandupper class limits and boundaries as well asthe class marks for each class Chalastarol vala Fraquancy 170 to 189 190 to 209 10 210 to 229 17 230 to 249 13 250 to 269
SWIMMER’S FLEXIBILITY STUDY Swimming requires complete body movement as defined in sports science. A swimmer’s flexibility helps in his/her movement in water, thus making him/her a faster swimmer. In a study conducted to determine if there is an improvement in swim speed after doing flexibility exercise, 15 swimmers of the same characteristics were randomly selected. They were asked to do a 25-m freestyle and their swim speed (in seconds) were recorded. After this, a flexibility exercise was done. All the swimmers were then asked to do another 25-m freestyle and their swim speed (in seconds) were also recorded. The data collected are given below and can also be found in the worksheet “swim_speed”of excel file “exer3_data.xlsx”. R outputs can be found in the file “exer3_outputs.pdf”.(Use before – after in your computations Swimmer 1 2 3 4 5 6 7 8 Before 16.87 19.42 20.04 22.82 24.24 17.76 23.91 17.17 After 15.82 18.47 20.43 21.76 23.88 18.12 20.96 16.03 Swimmer 9 10 11 12…
Please answer c-f
A flight travels daily from Pittsburgh to San Antonio. The following list gives the flight's arrival time (in minutes) relative to the scheduled arrival time for a selection of 10 days. (A negative number means the flight arrived that many minutes early.) -8, 9, -9,-10, 26, 36, -1, 11, 21, 23 Send data to calculator not (a) What is the median of this data set? If your answer. an integer, round your answer to one decimal place. (b) What is the mean of this data set? If your answer is not an integer, round your answer to one decimal place. Ozero modes (c) How many modes does the data set have, and what are their values? Indicate the number of modes by clicking in the appropriate circle, and then indicate the value(s) of the mode(s), if applicable. one mode: 0 two modes: and 5 2 Continue acer esc ! @ 3 $ 4 % 5 6 & 7

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