Mathematics, 13.12.2019 23:31 LarryJoeseph
Lester hollar is vice president for human resources for a large manufacturing company. in recent years, he has noticed an increase in absenteeism that he thinks is related to the general health of the employees. four years ago, in an attempt to improve the situation, he began a fitness program in which employees exercise during their lunch hour. to evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six months before the exercise program began and in the six months following the exercise program. below are the results.
employee before after
1 6 5
2 5 4
3 7 2
4 6 3
5 4 2
6 5 6
7 7 2
8 6 7
at the 0.005 significance level, can he conclude that the number of absences has declined? hint: for the calculations, assume the "before" data as the first sample.
a. reject h0 if t > (round your answer to 3 decimal places.)
b. the test statistic is (round your answer to 3 decimal places.)
c. the p-value is
Answers: 2
Mathematics, 21.06.2019 13:40
What is the correlation coefficient for the data? don't forget to turn the diagnoisticon (in the catalog menu of the calculator). r = answer (round to the nearest thousandth)
Answers: 1
Mathematics, 21.06.2019 14:50
Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3
Answers: 1
Mathematics, 21.06.2019 20:00
Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line
Answers: 1
Mathematics, 21.06.2019 20:30
Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)
Answers: 1
Lester hollar is vice president for human resources for a large manufacturing company. in recent yea...
Geography, 05.01.2022 15:50
English, 05.01.2022 15:50
Mathematics, 05.01.2022 15:50
Physics, 05.01.2022 16:00
Mathematics, 05.01.2022 16:00
Medicine, 05.01.2022 16:00
Mathematics, 05.01.2022 16:00
SAT, 05.01.2022 16:00
Social Studies, 05.01.2022 16:00
Physics, 05.01.2022 16:00
Mathematics, 05.01.2022 16:10
Mathematics, 05.01.2022 16:10
SAT, 05.01.2022 16:10