In a photo like the Hubble Deep Field (Figure 20.1 in your textbook), we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives? D. the galaxies that are nearest to us
in a process for producing jam, crushed fruit containing 14% weight soluble solids is mixed with sugar ( 1.22kg /1 kg crushed fruit)the resultant mixture is then evaporated in a kettle to produce jam containing 67% soluble solids. for a feed of 1000kg of crushed fruit, calculate the mass of mixture produced at the mixing stage, the mass jam produced from the kettle and the mass od water evaporated from the kettle
In a periodic inventory system, the cost of inventories sold is:
Debited to accounts receivable.
Credited to cost of goods sold.
Debited to cost of goods sold.
Not recorded at the time goods are sold.
In a process for manufacturing glassware, glass stems are sealed by heating them in a flame. The temperature of the flame varies a bit. Here is the distribution of the temperature X measured in degrees Celsius: Temperature X 540o 545o 550o 555o 560o Probability 0.1 0.25 0.3 0.25 0.1 d. What is the standard deviation of the number of degrees off target, X-550? 4
In a perfect world, research studies would be flawless however, that is not typically the case. Inherently, flaws exist related to study design, how the study is conducted, and also the manner in which research is reported. “Given that research is not perfect, users of research must learn to carefully evaluate research reports to determine their worth to practice through critical appraisal” (Melnyk & Fineout-Overholt, 2015, p. 92-93). Factors that need to be assessed when critically appraising quantitative studies include validity, reliability and applicability (Melnyk & Fineout-Overholt, 2015).
The validity of a study relates to obtaining results from utilizing sound methods which are scientific. Bias and confounding variables can compromise validity of a study. Bias can occur at any stage of the process but while assessing the reliability of the results one must look at if the study was systematic, grounded in theory, and criteria was followed for all of the processes. If so, then the study, more than likely, is valid and reliable. Clinicians need the ability to interpret the results so they can implement EBP into their practice (LoBiondo-Wood & Haber, 2014). “Whether we are interpreting the research studies of others, or designing our own, we need a good understanding of research design and an ability to recognize weaknesses in intervention studies which may reduce the reliability of study findings” (Ebbels, 2017, p. 229). Although each factor is important to quality research, I feel the most important factor is the applicability to practice. Having the ability to appraise research, which is evidence-based, and implement EBP interventions with our patients is essential in promoting optimal patient outcomes.
References
Ebbels, S. H. (2017). Intervention research: Appraising study designs, interpreting findings and creating research in clinical practice. International Journal of Speech-Language Pathology, 19(3), 218-231. https://doi.org/https://doi-org.arbor.idm.oclc.org/10.1080/17549507.2016.1276215
LoBiondo-Wood, G., & Haber, J. (2014). Nursing research: Methods and critical appraisal for evidence-based practice (8th ed.). St. Louis, MO: Mosby Elsevier.
Melnyk, B. M., & Fineout-Overholt, E. (2015). Evidence-based practice in nursing & healthcare: A guide to best practice (3rd ed.). Retrieved from Amazon Kindle App
In a process called liposuction, a doctor removes some adipose tissue from a person’s body. If the body fat has density of 0.94 g/mL and 3 quarts of fat are removed, how many pounds of the fat were removed from the patient?
In a “perfect world” capital market, how important is a firm’s decision to pay dividends versus repurchase shares? Under what conditions would you have a tax preference for share repurchase rather than dividends? Would managers acting in the interests of long-term shareholders be more likely to repurchase shares if they believed the stock to be either undervalued or overvalued? Lastly, explain how you would respond to firm’s decision to cut its dividend.
In a pea plant, peas are either yellow or green, with yellow being the dominant color.
Use Y to represent the yellow allele and y to represent the green allele. If you cross a
plant that produces yellow peas with a plant that produces green peas and the offspring
are 50% green and 50% yellow, what must have been the genotype of the original yellow
pea plant?
in a random sample of six microwave ovens, the mean repair cost was $70.00 and the standard deviation was $12.50. Assume the population is normally distributed and use a t-distribution to construct a 90% confidence level for the population mean.
a) 90%=
b) what is the margin of error?
c) interpret the results?
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