A study was conducted to evaluate the efficacy of Magnesium supplements to improve sleep quality of...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A study was conducted to evaluate the efficacy of Magnesium supplements to improve sleep quality of patients suffering from sleep disorders. 14 patients with sleep disorders took part to this experimental study. During a first period of one week, the quality of sleep of these patients was measured every night by a machine with sensors recording sleep phases, duration, breathing and movements. The machine outputs a score related to sleep quality, the higher the value, the higher the quality. Afterwards, for a second one week period, 8 of these patients were given daily Magnesium supplement tablets, while 6 were given daily Melatonin supplement tablets. Quality of sleep was measured again during this second period for both groups. The data are reported below. Patient Period 1 Period 2 Group mumber (no supplement) (supplement) 44 58 49 46 3 54 69 4 44 47 Magnesium 46 42 56 66 7 34 52 52 69 50 53 10 48 50 11 71 73 Melatonin 12 45 47 13 43 44 14 45 48 1. Is there evidence that the Magnesium supplement is effective in improving quality of sleep on average? Test using a 0.05. 2. Do the data contain evidence that the Magnesium supplement is more effective than the Mela- tonin supplement in improving quality of sleep on average? Test using a 0.05. A study was conducted to evaluate the efficacy of Magnesium supplements to improve sleep quality of patients suffering from sleep disorders. 14 patients with sleep disorders took part to this experimental study. During a first period of one week, the quality of sleep of these patients was measured every night by a machine with sensors recording sleep phases, duration, breathing and movements. The machine outputs a score related to sleep quality, the higher the value, the higher the quality. Afterwards, for a second one week period, 8 of these patients were given daily Magnesium supplement tablets, while 6 were given daily Melatonin supplement tablets. Quality of sleep was measured again during this second period for both groups. The data are reported below. Patient Period 1 Period 2 Group mumber (no supplement) (supplement) 44 58 49 46 3 54 69 4 44 47 Magnesium 46 42 56 66 7 34 52 52 69 50 53 10 48 50 11 71 73 Melatonin 12 45 47 13 43 44 14 45 48 1. Is there evidence that the Magnesium supplement is effective in improving quality of sleep on average? Test using a 0.05. 2. Do the data contain evidence that the Magnesium supplement is more effective than the Mela- tonin supplement in improving quality of sleep on average? Test using a 0.05.
Expert Answer:
Related Book For
Probability & Statistics for Engineers & Scientists
ISBN: 978-0130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
Posted Date:
Students also viewed these accounting questions
-
A study was conducted to determine whether lifestyle changes could replace medication in reducing blood pressure among hypertensives. The factors considered were a healthy diet with an exercise...
-
A study was conducted to determine whether certain features could be used to explain variability in the prices of furnaces. For a sample of 19 furnaces, the following regression was estimated: y =...
-
A study was conducted to see if an advertisement campaign would increase market share for Sanka instant decaffeinated coffee (R. Grover and V. Srinivasan, J. Marketing Research , vol. 24, 1987, pp....
-
Have leadership scholars, over the past 50 years, managed to produce a clear, cookie-cutter profile of the ideal leader through more than 1,000 studies
-
Identify the model Bob and Mary should use as the basis for their business planning in 2007, and discuss why you selected this model. Forecast sales for 2007. The Solar Alternative Company is about...
-
Which molecule is more polar? Which molecule is more polar? o=c=o S=C=S
-
Refer to Exercise 12. Compute the value of the test statistic. Exercise 12 A simple random sample of 17 business majors from a certain university had a mean GPA of 2.81 with a standard deviation of...
-
At an initiation banquet for new members of your business club, you are talking with two college students who are majoring in marketing. In discussing the accounting course they are taking, they...
-
Return on Investment and Residual Income Simonsen Structural Engineers provides engineering consulting services to clients engaged in major commercial construction projects. The company expanded into...
-
A sinusoidally modulated ordinary AM waveform is shown below. -3 (a) Determine the modulation index. (b) Calculate the transmission efficiency. (c) Determine the amplitude of the carrier which must...
-
Event Management question Please organize a professional event in the field of business (i.e: a conference, summit, seminar, festival, concert etc) by closely following / applying the essential steps...
-
Question 18 A Big Mac meal costs $3.00 and gives you an additional 5 units of utility; a meal at the Four Seasons Hotel costs $27.00 and gives you an additional 45 units of utility. Based only on the...
-
10. What is the consequence of neutropenia? A) Adhesion of leukocytes to microbes B) Production of large lysozomal granules C) Increased susceptibility to bacterial infections D) Inability to kill...
-
Mary has several trees in her back yard. She enjoys them verymuch as they make her back yard very appealing and most importantlythey provide her home with shade which results in lower utilitybills....
-
1. Which immunoglobulin is the largest in terms of size? A) Immunoglobulin G (IgG) B) Immunoglobulin M (IgM) C) Immunoglobulin A (IgA) D) Immunoglobulin D (IgD) 2. What properties do immunoglobulins...
-
15. What is the main cause of immunodeficiency in AIDS patients? A) Malnutrition B) Human immunodeficiency virus (HIV) infection C) Deficiency of C1 inhibitor D) Failure of helper T cells to produce...
-
23. Given the following HTML mark-up and CSS rules, what is the text colour of the word Rainy? HTML mark-up: Today is a Rainy Day CSS rules: body {color: black; } section, p { color: green; } p...
-
Give codons for the following amino acids: (a) Th (b) Asp (c) Thr
-
Consider the situation in example 8.6 do these results prompt you to question the premise that p = 800 hours? Give a probabilistic result that indicates how rare an event that X < 775 is when = 800....
-
The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are as follows(a) Estimate the linear regression line.(b) Estimate the final examination grade of a...
-
Referring to the random variables whose joint probability density function is given in Exercise 3.41 find the expected weight for the sum of the creams and toffees if one purchased a box of these...
-
Use the data in exercise S9-5 to prepare Edwards Corporation's statement of cash flows for the year ended June 30, 2020. Edwards uses the indirect method for operating activities. Use Exhibit 9-8,...
-
Williams Corporation accountants have assembled the following data for the year ended June 30, 2020: Prepare Williams Corporation's statement of cash flows for the year ended June 30, 2020. Williams...
-
Autos of Red Dcer Inc. reported the following financial statements for 2020: Compute the following investing cash flows: a. Acquisitions of plant and equipment (all were for cash). Autos of Red Deer...
Study smarter with the SolutionInn App