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    Hlt 362 Exercise 36

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    this suggests a rejection of the null hypothesis‚ meaning that the control and treatment groups are found to be different. 2. State the null hypothesis for the Baird and Sands (2004) study that focuses on the effect of the GI with PMR treatment on patients’ mobility level. Should the null hypothesis be rejected for the difference between the two groups in change in mobility scores over 12 weeks? Provide a rationale for your answer. The null hypothesis is that the mean mobility scores for

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    Excercise 27 - Hlt 362

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    1. The independent variable for A‚ B‚ and C is postnatal age in hours. The dependent variables for A‚ B‚ and C are systolic blood pressure‚ diastolic blood pressure‚ and mean blood pressure respectively. The relationships between these variable is direct and positive in that as the independent variable of postnatal age increases the corresponding dependent variable increases. 2. The independent and dependent variables in Figure 3 are the same as in Figure 2‚ as well as the relationship between

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    Hlt 362 Exercise 31

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    Name: Zipporah Gachoya Class: HLT 362V Date: 08/10/2013 ■ Ex Questions to be graded: Exercise 31 6. What is the smallest‚ significant t ratio listed in Table 2? Provide a rationale for your answer. t = 2.03* the smallest t ratio listed in Table 2. It indicates that the cholesterol level change was statistically significant from pretest to 3 months. It is greater than the given value of p<0.05 7. Why are the larger t ratios more likely to be statistically significant? They

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    Excel Worksheet

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    2010 version of Excel. Some new features include sparklines and slicers‚ and improvements to PivotTables and other existing features can help you to discover patterns or trends in your data that can lead to more-informed decisions. 2. Why would you use conditional formatting? Conditional formatting features reflect graphically the values for salespersons and customers relatives to each other. It is used as a comparison tool such as in the example of sales by salesperson worksheet‚ to compare and

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    excel worksheet

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    table’s source data. Question 03: Interviewer: Is it possible to make Pivot Table using multiple sources of data? You: Yes‚ if the multiple sources are different worksheets in the same workbook. Question 04: Interviewer: By any means can you repeat ’row headings’ in the Pivot Table? You: Yes‚ however this option is available in Excel 2010 or later. Question 05: Interviewer: Is it possible to display the text in the data area of Pivot Table? You: No‚ it’s not possible as we could only show

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    HLT 362 Exercise 18

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    DQ1 Week 3 Explain when a z-test would be appropriate over a t-test. DQ2 Week 3 Researchers routinely choose an alpha level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower alpha level (e.g.‚ 0.01)? What are some situations in which you might accept a higher level (e.g.‚ 0.1)? EXERCISE 20 Questions to be Graded 1. Which patient scored the highest on the preoperative CVLT Acquisition? What was his or her T score? 2. Which patient scored the

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    HLT 362 Exercise 31

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    Questions to be Graded 1. What are the two groups whose results are reflected by the t ratios in Tables 2 and 3? Answer: The two groups that are reflected by the t rations in table 2 and 3 are the Program effects of cardiovascular risk factors (Table 2) and program effect on Health behavior (Table 3). 2. Which t ratio in Table 2 represents the greatest relative or standardized difference between the pretest and 3 months outcomes? Is this t ratio statistically significant? Provide a rationale

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    Hypothesis Testing

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    understanding of hypothesis testing. The textbook explained the aspects and steps of hypothesis testing in a legible fashion‚ while the video helped demonstrate a real-life application. I learned from the text that hypothesis testing is a “Procedure for deciding whether the outcome of a study (results from a sample) supports a particular theory or practical innovation (which is thought to apply to a population)” (Aron A.‚ Aron‚ E.‚ and Coups‚ 2011‚ p. 145). I also learned that hypothesis testing

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    hypothesis testing

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    Release date: 27 April 2014 Submission date: 9 May 2014 TUTORIAL ON HYPOTHESIS TESTING (1) Basic Concept 1. State the null and alternative hypothesis for each conjecture : a. A researcher thinks that if expectant mothers use vitamin pills‚ the birth weight of the babies will increase. The average birth weight of the population is 3.0kg. b. An engineer hypothesizes that the mean number of defects can be decreased in a manufacturing process of compact disks by using robots instead of humans

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    Hypothesis Testing

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    Hypothesis Testing I Pat Obi What is a “Hypothesis?” A statement or claim about the value of a population parameter: μ‚ σ2‚ p Pat Obi‚ Purdue University Calumet 2 Decision Rule 1. x  0 Z s n Compare calculated Z value to Z value from Table (critical Z value)  Reject H0 if calculated Z value lies in the rejection/significance region (i.e.  region) ALTERNATIVELY: 2. Compare p-value to   Reject H0 if p-value <  Pat Obi‚ Purdue University Calumet 3 Two-Tail Test   Ex: H0: 0

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