A sample of 15 weight litters is tested to see how much weight they can bench press. They then follow a special training program for three weeks, alter which they are tested again. The samples are the amounts of weights that were lilted before and after the training program.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 9, Problem 1CQ

A sample of 15 weight litters is tested to see how much weight they can bench press. They then follow a special training program for three weeks, alter which they are tested again. The samples are the amounts of weights that were lilted before and after the training program.

Expert Solution & Answer

To determine

Check whether the two samples are independent or paired.

Answer to Problem 1CQ

The two samples are paired.

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Please conduct a step by step of these statistical tests on separate sheets of Microsoft Excel. If the calculations in Microsoft Excel are incorrect, the null and alternative hypotheses, as well as the conclusions drawn from them, will be meaningless and will not receive any points. 4. One-Way ANOVA: Analyze the customer satisfaction scores across four different product categories to determine if there is a significant difference in means. (Hints: The null can be about maintaining status-quo or no difference among groups) H0 = H1=

Please conduct a step by step of these statistical tests on separate sheets of Microsoft Excel. If the calculations in Microsoft Excel are incorrect, the null and alternative hypotheses, as well as the conclusions drawn from them, will be meaningless and will not receive any points 2. Two-Sample T-Test: Compare the average sales revenue of two different regions to determine if there is a significant difference. (Hints: The null can be about maintaining status-quo or no difference among groups; if alternative hypothesis is non-directional use the two-tailed p-value from excel file to make a decision about rejecting or not rejecting null) H0 = H1=

Please conduct a step by step of these statistical tests on separate sheets of Microsoft Excel. If the calculations in Microsoft Excel are incorrect, the null and alternative hypotheses, as well as the conclusions drawn from them, will be meaningless and will not receive any points 3. Paired T-Test: A company implemented a training program to improve employee performance. To evaluate the effectiveness of the program, the company recorded the test scores of 25 employees before and after the training. Determine if the training program is effective in terms of scores of participants before and after the training. (Hints: The null can be about maintaining status-quo or no difference among groups; if alternative hypothesis is non-directional, use the two-tailed p-value from excel file to make a decision about rejecting or not rejecting the null) H0 = H1= Conclusion:

Answer 2

Textbook Question

Chapter 9, Problem 1CQ

A sample of 15 weight litters is tested to see how much weight they can bench press. They then follow a special training program for three weeks, alter which they are tested again. The samples are the amounts of weights that were lilted before and after the training program.

Expert Solution & Answer

To determine

Check whether the two samples are independent or paired.

Answer to Problem 1CQ

The two samples are paired.

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 9, Problem 1CQ

A sample of 15 weight litters is tested to see how much weight they can bench press. They then follow a special training program for three weeks, alter which they are tested again. The samples are the amounts of weights that were lilted before and after the training program.

Expert Solution & Answer

To determine

Check whether the two samples are independent or paired.

Answer to Problem 1CQ

The two samples are paired.

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 9, Problem 1CQ

A sample of 15 weight litters is tested to see how much weight they can bench press. They then follow a special training program for three weeks, alter which they are tested again. The samples are the amounts of weights that were lilted before and after the training program.

Expert Solution & Answer

To determine

Check whether the two samples are independent or paired.

Answer to Problem 1CQ

The two samples are paired.

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

Check whether the two samples are independent or paired.

Answer to Problem 1CQ

The two samples are paired.

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.

Answer 8

Expert Solution & Answer

To determine

Check whether the two samples are independent or paired.

Answer to Problem 1CQ

The two samples are paired.

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

Check whether the two samples are independent or paired.

Answer 12

Answer to Problem 1CQ

The two samples are paired.

Answer 13

Explanation of Solution

Calculation:

It is given that, a sample of 15 weight lifters are tested to see the amount of weights lifted by them and a training program is given for 3 weeks for those 15 weight lifters and again tested to see the amount of weights lifted by them. The samples are the amounts of weights lifted by 15 weight lifters before and after the training program.

Independent samples:

Any two randomly selected samples are said to be independent, if the observations in one sample do not depend on the observations in the other sample. In other words it can be said that the observations in one sample should not influence the observations in the other sample.

Paired or dependent samples:

Any two randomly selected samples are said to be paired, if each observation in one sample is paired with the observation in the second sample. In other words it can be said that, if two different drugs are imposed one after another on the same subjects and values of each drug are indicated as a sample, then the two samples are said to be paired o dependent samples.

Here, a single group of individuals is selected. Each and every individual is taken a weight lifting test before and after the training program. This scenario gives two samples of amounts of weights, first sample of weights before the training program and the second sample of weights after the training program.

The investigator compares the weights lifted by weight lifters before and after the training program, to determine the effectiveness of training program.

Here, each observation in one sample can be paired with an observation in second sample. That is, the two samples are dependent.

Thus, the two samples are paired.