Please answer random from hospital records and invited to participate in the study. Each participant's daily calcium intake ismeasured based on reported food intake and supplements. The data are shown below.Normal Bone DensityOsteopeniaOsteoporosis11001100990900120075088080012008009001000650600500700800450Is there a statistically significant difference in mean calcium intake in patients with normal bone density ascompared to patients with osteopenia and osteoporosis? 5. Calcium is an essential mineral that regulates the heart, is important for blood clotting and for buildinghealthy bones. The National Osteoporosis Foundation recommends a daily calcium intake of 1000-1200 mg/day for adult men and women. While calcium is contained in some foods, most adults do notget enough calcium in their diets and take supplements. Unfortunately some of the supplements haveside effects such as gastric distress, making them difficult for some patients to take on a regular basis.A study is designed to test whether there is a difference in mean daily calcium intake in adults with normalbone density, adults with osteopenia (a low bone density which may lead to osteoporosis) and adults withosteoporosis. Adults 60 years of age with normal bone density, osteopenia and osteoporosis are selected at

If we want to compare three or more groups mean, then One way anova is used. It is used to determine…

Answered: random from hospital records and…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 2EQ: 2. Suppose that in Example 2.27, 400 units of food A, 500 units of B, and 600 units of C are placed...

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2. Suppose that in Example 2.27, 400 units of food A, 500 units of B, and 600 units of C are placed in the test tube each day and the data on daily food consumption by the bacteria (in units per day) are as shown in Table 2.7. How many bacteria of each strain can coexist in the test tube and consume all of the food? Table 2.7 Bacteria Strain I Bacteria Strain II Bacteria Strain III Food A 1 2 0 Food B 2 1 3 Food C 1 1 1
If the preceding 50% rates were each reduced to 40% by a massive education program, then what effect would this change have on the overall mortality rate among true hypertensives; that is would the mortality rate decrease and, if so, what percentage of deaths among hypertensives could be prevented by the education program?
22 The Sanders Garden Shop mixes two types of grass seed into a blend. Each type of grass has been rated (per pound) according to its shade tolerance, ability to stand up to traffic, and drought resistance, as shown in the table. Type A seed costs $1 and Type B seed costs $2. If the blend needs to score at least 300 points for shade tolerance, 400 points for traffic resistance, and 750 points for drought resistance, show all your calculations on paper , take a picture, convert to pdf, and upload.Upload your excel file if applicable. Type A Rating Type B Rating Shade Tolerance 1 1 Traffic Resistance 2 1 Drought Resistance 2 5 d. How many pounds of each seed should be in the blend? e. Which targets will be exceeded? f. How much will the blend cost? Please take a picture of all your hand writings and the detail of your work and upload here. Upload all your excel files showing your work here if you have not done so in the previous
22 The Sanders Garden Shop mixes two types of grass seed into a blend. Each type of grass has been rated (per pound) according to its shade tolerance, ability to stand up to traffic, and drought resistance, as shown in the table. Type A seed costs $1 and Type B seed costs $2. If the blend needs to score at least 300 points for shade tolerance, 400 points for traffic resistance, and 750 points for drought resistance, show all your calculations on paper , take a picture, convert to pdf, and upload.Upload your excel file if applicable. Type A Rating Type B Rating Shade Tolerance 1 1 Traffic Resistance 2 1 Drought Resistance 2 5 a. Identify decision variables and formulate mathematical statement of objective function based on decisions variables. b. Formulate the constraints in terms of the decision variables. c. Draw the graph with 3 constraint lines and the object line and annotate the graph to identify the optimum. d. How many pounds of…
For years, the drug Vioxx, developed andmarketed by Merck, was one of the blockbusterdrugs on the market. One of a number ofso-called Cox-2 anti-inflammatory drugs, Vioxxwas considered by many people a miracle drug foralleviating the pain from arthritis and other painfulafflictions. Vioxx was marketed heavily on television,prescribed by most physicians, and used by anestimated two million Americans.All of that changed in October 2004, when theresults of a large study were released. The study,which followed approximately 2600 subjects overa period of about 18 months, concluded that Vioxxuse over a long period of time caused a significantincrease in the risk of developing serious heartproblems. Merck almost immediately pulled Vioxxfrom the American market and doctors stoppedprescribing it. On the basis of the study, Merck facednot only public embarrassment but the prospect ofhuge financial losses.More specifically, the study had 1287 patientsuse Vioxx for an 18-month period, and it…
In the production process of a company, 4 units of a certain input are used daily. It happens that the different formulations of this input can affect the yield of the process as well as the level of environmental pollution. On a given day the company has 40 units of this input in stock and they can be classified according to the table below:
The research department at a manufacturing company has developed a new process that it believes will result in an improved product. Management must decide whether to go ahead and market the new product. The new product may or may not be better than the old one. If the new product is better and the company decides to market it, sales should increase by $60,000. If it is not better and they replace the old product with the new product on the market, they will lose $25,000 to competitors. If they decide not to market the new product, they will lose a total of $50,000 if it is better and just research costs of $20,000 if it is not. Answer parts a through c below. (a) Prepare a payoff matrix. Start 2 By 2 Table 1st Row 1st Column 60000 2nd Column negative 25000 2nd Row 1st Column negative 50000 2nd Column negative 20000 EndTable 60000 −25000 −50000 −20000 (Type an integer or decimal for each matrix element. Do not include the $ symbol in your answer.) (b) If…
Kentville, a community of 10,000 people, resides next to a krypton mine, and there is a concern that the emission from the krypton smelter have resulted in adverse effects. Specifically, Kryptonosis seems to have killed 12 of Kentville’s inhabitants last year. A neighboring community, Lanesburg, has 25,000 inhabitants and is far enough from the smelter to not be affected by the emission. In Lanesburg, only three people last year died of Kryptonosis. Given that the number of deaths in Kentville and their causes last year were: Heart attack=7 Accidents=4 Kryptonosis=12 Other=6 What is the risk of dying of Kryptonosis in Kentville relative to non-contaminated locality?What is the risk of dying of Kryptonosis in Kentville relative to deaths due to other causes? How many times the chance of dying of Kryptonosis compared to dying of accidents ? How many times the chance of dying of Kryptonosis compared to Other causes?
Given that there are more women in the labor force, more women holding advanced degrees, how does the glass ceiling and the second shift contribute to the persistence of gender inequality?
ABC Textiles, Inc. has a textile production facility located in Palm City, FL. It lies along a river that is used for drinking water for the surrounding town and is therefore tested regularly for chemical contaminants according to EPA standards. There is also a recreational beachfront with swimming and boating located ½ mile downstream of the plant. Over the last ten years, the incidence of a skin reaction called allergic dermatitis has increased dramatically for swimmers at the recreational beachfront. Due to public concern, the local water utility began checking for elevated levels of several pollutants that cause skin reactions. Over the course of a year, they collected 45 water samples from a location adjacent to the output of the industrial plant. These samples were tested and elevated levels of chromium were identified. The EPA’s Maximum Contaminant Level (MCL) for chromium is 0.1 mg/L. With the knowledge that chromium pollution can result from fabric dyeing within textile…
ABC Textiles, Inc. has a textile production facility located in Palm City, FL. It lies along a river that is used for drinking water for the surrounding town and is therefore tested regularly for chemical contaminants according to EPA standards. There is also a recreational beachfront with swimming and boating located ½ mile downstream of the plant. Over the last ten years, the incidence of a skin reaction called allergic dermatitis has increased dramatically for swimmers at the recreational beachfront. Due to public concern, the local water utility began checking for elevated levels of several pollutants that cause skin reactions. Over the course of a year, they collected 45 water samples from a location adjacent to the output of the industrial plant. These samples were tested and elevated levels of chromium were identified. The EPA’s Maximum Contaminant Level (MCL) for chromium is 0.1 mg/L. With the knowledge that chromium pollution can result from fabric dyeing within textile…
ABC Textiles, Inc. has a textile production facility located in Palm City, FL. It lies along a river that is used for drinking water for the surrounding town and is therefore tested regularly for chemical contaminants according to EPA standards. There is also a recreational beachfront with swimming and boating located ½ mile downstream of the plant. Over the last ten years, the incidence of a skin reaction called allergic dermatitis has increased dramatically for swimmers at the recreational beachfront. Due to public concern, the local water utility began checking for elevated levels of several pollutants that cause skin reactions. Over the course of a year, they collected 45 water samples from a location adjacent to the output of the industrial plant. These samples were tested and elevated levels of chromium were identified. The EPA’s Maximum Contaminant Level (MCL) for chromium is 0.1 mg/L. With the knowledge that chromium pollution can result from fabric dyeing within textile…

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