4. Why do you think most journals will not publish papers with an alpha = 0.1 ? Explain your answer using Type I or Type Il errors.
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- Conduct a Chi-square test between two appropriate variables of your choice to investigate an association. Obtain column %s, count and expected count in the crosstabs table. Describe what the table tells you about the association in 2-3 sentences, reporting some %s and comparing select observed/expected frequencies in various cells to describe the association. Write out the null and research hypothesis Report the χ² critical value for an alpha level of 0.05. Report χ² obtained/test stat and sig/p value from the output. What is your decision about the hypothesized association? Write out a conclusion about the association. Attach your output including the cross-tabulation table and the chi-square test.If your p-value is 0.0019, what is the most significant alpha level? There is no 'most significant alpha level' 0.1 0.05 0.01 0.005 0.001 0.0005 0.0001 If your p-value is 0.49, what is the most significant alpha level? There is no 'most significant alpha level' 0.1 0.05 0.01 0.005 0.001 0.0005 0.0001 If your p-value is 0.041, what is the most significant alpha level? There is no 'most significant alpha level' 0.1 0.05 0.01 0.005 0.001 0.0005 0.0001 If your p-value is 0.078, what is the most significant alpha level? There is no 'most significant alpha level' 0.1 0.05 0.01 0.005 0.001 0.0005 0.0001 If your p-value is 2.6×10−102.6×10-10 (which may show on computers as 2.6 E -10), what is the most significant alpha level? There is no 'most significant alpha level' 0.1 0.05 0.01 0.005 0.001 0.0005 0.0001 If your p-value is 0.0061, what is the most significant alpha level? There is no 'most significant alpha level' 0.1 0.05 0.01 0.005 0.001 0.0005 0.0001 If your…When the Titanic sank, passenger survival rates were recorded along with additional information like their name, what class ticket they had, their age, and whether or not they had children. Some of these factors may predict whether or not a passenger was likely to survive the accident. The data set "Titanic survival.jasp" contains actual recorded data from the event. Using the variables "Class" and "Survived", conduct a Chi-Square Test for Independence, at alpha = 0.05, to see if a passengers ticket class (first, second, or third class) is significantly associated with their survival rates. What is the value of X2-crit? A. 127.86 B. 1309 C. 7.38 D. 5.99
- Suppose a researcher conducted a study examining the effectiveness of font type (OpenDyslexic vs. Times New Roman) on reading comprehension for 20 students with dyslexia. After reading a passage in one of the two fonts, 10 students in each of the two font conditions completed a brief reading comprehension test of 15 questions. The number of correctly answered questions for each student is given in the table below: Complete the following in the context of conducting data analysis/ a. Calculate the average number of correct test questions for each group b. Calculate the standard deviation for each group c. Calculate the median and mode for both groups d. Calculate the interquartile range for each group OpenDyslexic 10 9 11 8 24867 12 14 Times New Roman 6675 & Na 43 4 2 8 9A study was conducted to determine if lung cancer altered levels of surfactant in the alveoli of the lung. Seven healthy subjects in the study yielded the following data on surfactant levels: 18, 12, 15, 15, 16, 9, 17. Seven lung cancer patients yielded the following results: 16, 8, 7, 15, 11, 12, 9. Do these data indicate a difference in the surfactant level with cancer? Let α = 0.05. Give the p-value.Can I use CRONBACH’S ALPHA in testing the reliability of the device? How?
- A research is presented. For each, identify the (A) population and (B) sample in the study 3. Researchers want to determine whether or not higher folate intake is associated with a lower risk of hypertension (high blood pressure) in women (927 to 44 years of age). To make this determination, they look at 7373 cases of hypertension in these women and find that those consume at least 1000 micrograms per day of total folate had a decreased risk of hypertension compared with those who consume less than 200 A: B:When the Titanic sank, passenger survival rates were recorded along with additional information like their name, what class ticket they had, their age, and whether or not they had children. Some of these factors may predict whether or not a passenger was likely to survive the accident. The data set "Titanic survival.jasp" contains actual recorded data from the event. Using the variables "Class" and "Survived", conduct a Chi-Square Test for Independence, at alpha = 0.05, to see if a passengers ticket class (first, second, or third class) is significantly associated with their survival rates. Identify the correct value for df. A. 2 B. 1309 C. 4 D. 127According to a CCH Unscheduled Absence survey 9 of small According to a CCH Unscheduled Absence survey, 9% of small businesses use telecommuting of workers in an effort to reduce unscheduled absenteeism. This proportion compares to 6% for all businesses. Is there really a significant difference between small businesses and all businesses on this issue? Use these data and an alpha of .10 to test this question. Assume that there were 780 small businesses and 915 other businesses in this survey. According to a CCH Unscheduled Absence survey 9 of small
- what is the meaning of weighted unifrac beta diversity and unweighted unifrac diversity? How to interpretate the data value?30.5% of cases fall below what z- score?Mr. X is a resident of Wakanda Ward who is concerned with the recent low turnout in local elections in this area. In an effort to understand the occurrence, Mr. Mbewe conducted research investigating the factors that drive an individual’s decision to participate in voting at Local Government level. He has managed to conduct and obtain an output from Stata but is struggling with results interpretation. The following are the output results from Stata: RSS = 28238.59 TSS= 35570.90 Adjusted R-squared = 0.2016 Constant = -0.762 Independent Variable Coefficient Standard Error P-value Income (in Kwacha) 0.310 - 0.003 Age (years) 0.358…
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