Mrs. Harris is studying whether eating breakfast the day of an achievement test produces higher test scores in her 6th grade classroom. The data is shown in the tables below.Achievement Test Scores: No BreakfastStudentScoreStudent A248Student B277Student C245Student D256Student E255Student F279Student G281Student H265Achievement Test Scores: After Eating BreakfastStudentScoreStudent J271Student K244Student L280Student M284Student N259Student P267Student R258Student S275Identify the important pieces of information needed to decide if there is a statistically significant difference in the data sets (null hypothesis, alternative hypothesis, one- or two- tailed test, sample size for each group).aThe null hypothesis is eating breakfast before an achievement test has no effect on test scores.The alternative hypothesis is eating breakfast before an achievement test produces higher test scores.This is a one-tailed study.The sample size is 16 students total; Group 1 has 8 students, and Group 2 has 8 students.bThe null hypothesis is eating breakfast before an achievement test produces higher test scores.The alternative hypothesis is eating breakfast before an achievement test has no effect on test scores.This is a one-tailed test.The sample size is 16 students total; Group 1 has 8 students, and Group 2 has 8 students.cThe null hypothesis is eating breakfast before an achievement test has no effect on test scores.The alternative hypothesis is eating breakfast before an achievement test produces higher test scores.This is a two-tailed test.The sample size is 16 students total; Group 1 has 8 students, and Group 2 has 8 students.dThe null hypothesis is eating breakfast before an achievement test has no effect on test scores.The alternative hypothesis is eating breakfast before an achievement test produces higher test scores.This is a one-tailed test.The sample size is 8 students total; Group 1 has 4 students, and Group 2 has 4 students.

Solution The given sample is a independent sample.

Answered: Mrs. Harris is studying whether eating…

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

Related questions

Question

Mrs. Harris is studying whether eating breakfast the day of an achievement test produces higher test scores in her 6th grade classroom. The data is shown in the tables below.

Achievement Test Scores: No Breakfast

Student	Score
Student A	248
Student B	277
Student C	245
Student D	256
Student E	255
Student F	279
Student G	281
Student H	265

Achievement Test Scores: After Eating Breakfast

Student	Score
Student J	271
Student K	244
Student L	280
Student M	284
Student N	259
Student P	267
Student R	258
Student S	275

Identify the important pieces of information needed to decide if there is a statistically significant difference in the data sets (null hypothesis, alternative hypothesis, one- or two- tailed test, sample size for each group).

a	The null hypothesis is eating breakfast before an achievement test has no effect on test scores. The alternative hypothesis is eating breakfast before an achievement test produces higher test scores. This is a one-tailed study. The sample size is 16 students total; Group 1 has 8 students, and Group 2 has 8 students.
b	The null hypothesis is eating breakfast before an achievement test produces higher test scores. The alternative hypothesis is eating breakfast before an achievement test has no effect on test scores. This is a one-tailed test. The sample size is 16 students total; Group 1 has 8 students, and Group 2 has 8 students.
c	The null hypothesis is eating breakfast before an achievement test has no effect on test scores. The alternative hypothesis is eating breakfast before an achievement test produces higher test scores. This is a two-tailed test. The sample size is 16 students total; Group 1 has 8 students, and Group 2 has 8 students.
d	The null hypothesis is eating breakfast before an achievement test has no effect on test scores. The alternative hypothesis is eating breakfast before an achievement test produces higher test scores. This is a one-tailed test. The sample size is 8 students total; Group 1 has 4 students, and Group 2 has 4 students.