Total | 1855.269 | 129 | | | | Testing π1: Ho: The average heights of high pitched voice parts singers are same. H1: The average heights of high pitched voice parts singers are not equal level of significance. Assume level of significance is a=0.05 ANOVA | Sum of Significance | df | Mean Square | F | Sig | Between Groups | 783.139 | 1 | 783.139 | 170.834 | .000 | Within Groups | 334.647 | 73 | 4.584 | | | Total | 1117.787 | 74 | | | | The p-value in the above table
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method A is better than method B-alternative hypothesis(Ha) LEVEL OF SIGNIFICANCE • A very important concept in the context of hypothesis testing • It is represented in a % age (usually 5%)‚ which should be chosen with care‚ thought and reason. • Implies H0 will be rejected when the sampling result(observed confidence) has a less than 0.05 probability of occurring if H0 is true. • In simple words 5% level of significance means that researcher is willing to take as much as 5% risk of rejecting
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variable in this study? Is this value significant? Provide a rationale for your answer. T = -3.15 describes the mental health variability. This is a significant value because it’s provides the degree of freedom. According to the data above the significance of a t ratio can be determined by comparison with the critical values in a statistical table for the t distribution using the degree of freedom for the study. The value is significant because p value of it is 0.002 which is smaller than alpha value
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1. (12 points) In this recession‚ yours truly would like to make extra money to support his frequent filet-mignon-et-double-lobster-tail dinner habit. A promising enterprise is to mass-produce garnet wedding rings for brides. Based on my diligent research‚ I have found out that women’s ring size normally distributed with a mean of 6.0‚ and a standard deviation of 1.0. I am going to order 5000 garnet wedding rings from my reliable Siberian source. They will manufacture ring size from 4.0‚ 4
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set @ a=0.05 and since p is < this value the study results statistically significant. Reduction in mobility difficulty at week 12 is observed from the participants of the intervention group. 4. If the researchers had set the level of significance or = 0.01‚ would the results of p 0.001 still be statistically significant? Provide a rationale for your answer. If the level of
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is [pic] where [pic]= 0.132687246 Therefore‚ [pic]= 2.160335305 Rejection criteria: Reject the null hypothesis‚ if the observed significance (p-value) is less than the significance level 0.05. P-value = P ([pic]> 2.160335305) = 0.030746722 Conclusion: Reject the null hypothesis‚ since the observed significance (p-value) is less than the significance level 0.05. The sample provides enough evidence to support the claim that there is significant difference in the proportions of red and
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47.15 -3.02 0.001 α 0.05= -1.645 H0 μ = 50‚000 Ha μ < 50‚000 The hypothesis test claims that the average annual income was less than $50‚000. H0 claims equal to $50‚000 and the alternative hypothesis claims less than $50‚000. The significance level is α 0.05= -1.645. According to Course Project data‚ when I generate the data of income in Minitab‚ I found the standard deviation‚ which is 14.64. Then next step is calculating the z-value by Minitab‚ which is -3.02. Consequently; z-value
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CHAPTER I The Problem and Its Setting This chapter presents the background of the study‚ rationale‚ objectives ‚ and the statement of the problem‚ hypotheses‚ significance‚ of the study‚ and scope and delimitation. Background of the Study Coconut Oil and Calamansi has a lot of uses in our daily lives. The researchers want to find out the effect of coconut oil and calamansi peeling as agent for hair oil. It can help the researchers to determine the possibility of oil extracted from the calamansi
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exceed 3 kg as many airlines limit the weight of carry-on luggage on their planes to 7 kg. Past experience allows the assumption that the std. dev = 0.03 kg. A sample of 50 cabin bags is selected and the sample mean is 3.009 kg. Using a 0.05 significance‚ conduct a hypothesis test to determine if the population mean weight of the cabin bags is greater than 3kg? What is the null and alternative hypothesis for this test? A H0: µ ≥ 3‚ H1: µ < 3 B H0: µ ≤ 3‚ H1: µ > 3 C H0: µ = 3‚ H1: µ ≠ 3
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Due Date:15.7.2006 BIS 541 Homework-1 Q-1. The national Health Care Association is concerned about the shortage of nurses the health care profession is projecting for the future. To learn the current degree of job satisfaction among nurses‚ the association has sponsored a study of hospital nurses throughout the country. As part of this study‚ a sample of 50 nurses were asked to indicate their degree of satisfaction in their work‚ pay‚ and oppurtunities for promotion. Each of the three aspects
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