Question

In: Statistics and Probability

Question 3 A brain specialist performed an experiment to see if sensory deprivation over an extended...

Question 3

A brain specialist performed an experiment to see if sensory deprivation over an extended period of time reduces the alpha-wave frequencies produced by the brain. To determine this, 10 subjects, inmates of a Correctional Centre, were randomly selected.

First, the members of the group were allowed to remain in their cells. Seven days later, alpha-wave frequencies were measured in Hertz for all subjects (nonconfined).

After that, the same group of subjects were placed in solitary confinement for seven days and their alpha-wave frequencies were measured again in Hertz.

The data from both confined and nonconfined groups of the experiment are recorded in the following table.

Subject #

Confined

Nonconfined

1

7

8

2

10

9

3

9

10

4

9

10

5

10

11

6

9

11

7

11

11

8

12

11

9

11

12

10

12

14

Use a chi-square test to investigate if the solitary confinement reduces the alpha-wave frequencies of the brain. In performing this test, state appropriate hypothesis (define any symbols used). Calculate the value of the test statistic, P-value of this test and write a meaningful conclusion.

Solutions

Expert Solution


Related Solutions

Question 3 A brain specialist performed an experiment to see if sensory deprivation over an extended...
Question 3 A brain specialist performed an experiment to see if sensory deprivation over an extended period of time reduces the alpha-wave frequencies produced by the brain. To determine this, 10 subjects, inmates of a Correctional Centre, were randomly selected. First, the members of the group were allowed to remain in their cells. Seven days later, alpha-wave frequencies were measured in Hertz for all subjects (nonconfined). After that, the same group of subjects were placed in solitary confinement for seven...
Question 3 A brain specialist performed an experiment to see if sensory deprivation over an extended...
Question 3 A brain specialist performed an experiment to see if sensory deprivation over an extended period of time reduces the alpha-wave frequencies produced by the brain. To determine this, 10 subjects, inmates of a Correctional Centre, were randomly selected. First, the members of the group were allowed to remain in their cells. Seven days later, alpha-wave frequencies were measured in Hertz for all subjects (nonconfined). After that, the same group of subjects were placed in solitary confinement for seven...
An experiment was performed to see whether sensory deprivation over an extended period of time has...
An experiment was performed to see whether sensory deprivation over an extended period of time has any effect on the alpha-wave patterns produced by the brain. To determine this, 20 subjects, inmates in a Canadian prison, were randomly split into two groups. Members of one group were placed in solitary confinement. Those in the other group were allowed to remain in their own cells. Seven days later, alpha-wave frequencies were measured for all subjects, as shown in the following table....
Does sustained sensory deprivation have any effect on the alpha-wave patterns produced by the brain? To...
Does sustained sensory deprivation have any effect on the alpha-wave patterns produced by the brain? To determine this, 10 subjects (inmates in a Canadian prison) were placed in solitary confinement for a week. At the end of the week, alpha-wave frequencies were measured for all subjects and compared to their values before confinement. Assume the population alpha-wave patterns are normally distributed and the inmates were randomly selected. Use a t-critical of 2.262. Pre-confinement (Hz) Confined (Hz) 10.4 9.6 10.3 10...
Answer this question in a 1-2 paragraphs The experiment that was performed was size exclusion chromatography....
Answer this question in a 1-2 paragraphs The experiment that was performed was size exclusion chromatography. it involved: - sephadex G75 (separates up to 80,000 g/mol) - buffer: 20mM sodium Phosphate @ ph 7.0 - three compounds that were separated 1.) blue dextron (2,000,000 g/mol) blue 2.) cytochrome C (~12,000 g/mol) orange 3.) potassium chromate (194.2 g/mol) yellow 1 eluded first followed by 2 and then 3 as expected. ••• Come up with a creative, some sort of experiment that...
QUESTION 3 In many advertising situations, the decision facing the creative specialist is not whether to...
QUESTION 3 In many advertising situations, the decision facing the creative specialist is not whether to choose an emotional or a rational advertising appeal but, rather determining how to combine the two approaches. Explain with examples emotional and rational appeals in advertising. Discuss five (5) critical points marketers must take into consideration whether to use more emotional or rational appeals when developing advertising message or campaign. 20 marks
in an experiment i performed 3 EDTA complexometric tritrations to determine the amount of Al3+, Ca2+...
in an experiment i performed 3 EDTA complexometric tritrations to determine the amount of Al3+, Ca2+ and Mg2+ in 0.6499 g of antacid powder. i made my sample for titration following the method below. A sample of antacid powder ("Hardy's indigestion powder") is supplied containing aluminium hydroxide, calcium carbonate and magnesium carbonate. Record this accurate mass. Add 5 mL of water and then 10 mL of 3 mol L-1 HCl Heat the mixture (microwave for 30 seconds) to boiling and...
3) An experiment was performed where HEK 293 cells expressing TLR5 was treated with flagellin and...
3) An experiment was performed where HEK 293 cells expressing TLR5 was treated with flagellin and the following absorbance readings were measured at 655 nm. No treatment: 0.232, 0.247, 0.239 Flagellin treatment: 0.355, 0.377, 0.350 What is the P-value as calculated by T-test? Assume 2-tails and equal variance among the groups.
3) The following “cycle of copper” experiment is performed in some general chemistry laboratories. The series...
3) The following “cycle of copper” experiment is performed in some general chemistry laboratories. The series of reactions starts with copper wire and ends with metallic copper. The steps are as follows: I. A piece of copper wire of known mass is allowed to react with concentrated nitric acid, the products are copper(II) nitrate , nitrogen dioxide, and water. II. The copper(II) nitrate is treated with a sodium hydroxide solution to form copper(II) hydroxide. III. On heating, the copper(II) hydroxide...
If you want to reproduce the shuttling experiment as performed during week 3. you will need...
If you want to reproduce the shuttling experiment as performed during week 3. you will need to purchase Cycloheximide (CHX) from one of three potential suppliers. CHX has a molar mass of 281.35 g/mol and can be dissolved in DMSO, water, or EtOH but with different solubilities. You will need to use CHX at a final working concentration of 17 μg/mL in a 150 mm dish with a total media volume of 14 mL. Determine how much of the stock...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT