Which non-parametric test for ordinal data is the best to use in the given scenario? The wing stroke frequencies of two species of Rhinolophus bats implicated as possible origin for SARS virus were recorded for a sample of 4 Rhinolophus affinis (species 1) and 6 Rhinolophus Lacépéde (species 2). The wing stroke frequencies of the two species of bats are the following: specles 1-235, 225, 190, 188, species 2- 180, 169, 180, 185, 178, 182. Can you conclude that the distributions of wing strokes differ for these two specles? OWilcoxon Rank Sum Test OMood Median Test Sign Test Kruskal-Wallis Test Wilcoxon Matched-Pairs Signed-Ranks Test
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- The production numbers for five days in a factory producing three different products are given in the Table. The production numbers do not provide the parametric assumptions. Which of the following is the test statistic when it is investigated whether there is a difference between the production numbers of different products at the 0.05 significance level?The following partial ANOVA table is taken from the article “Perception of Spatial Incongruity” (J. Nerv. Ment. Dis., 1961: 222) in which the abilities of three different groups to identify a perceptual incongruity were assessed and compared. All individuals in the experiment had been hospitalized to undergo psychiatric treatment. There were 21 individuals in the depressive group, 32 individuals in the functional “other” group, and 21 individuals in the brain-damaged group. Complete the ANOVA table and carry out the F test at level a ¼ .01Need help writing a null hypothesis for the bivariate relationship shown in the SPSS output.
- For the homogeneity of variance assumption, (a)describe the boxplots (b)will the assumption may or may not be satisfied? (c)Which between a parametric test or a non-parametric test would you recommend?Can we use a parametric test or non-parametric test if we wanted to analyze two data sets with the first data set (old) being normally distributed while the second data set (young) is not normally distributed?When determining whether grounding accidents and hull failures result in different spillage (is there a difference between spills caused by grounding or hull failures) would I use a two tail t test to decide this?
- A restaurant chain introduces new dishes on its menu and wants to know if this will increase the number of customers in its branches. According to the data of the chain, 20 students did not suffer changes in their affluence, 6 had a drop in their number of clients and 12 presented An increase with a significance level of 0.05 uses a non-parametric test to reject or accept the null hypothesis that the instruction of new dishes does not generate changes in the flow of dinersRelatively minor repetitive impacts to the head such as those experienced by elite male soccer players when hit-ting a soccer ball with their heads may cause brain dam-age, according to the Journal of the American Medical Association. One indicator of mild brain injury is calledradial diffusivity. The radial diffusivity measurements oftwelve right-handed male soccer players were comparedto those of eleven competitive swimmers (who are notlikely to have repeated head impacts). Which type of plotwould not be appropriate for assessing the differencebetween the two groups?A) Stacked dotplots, one for each group, on the sameaxisB) Side-by-side boxplotsC) Stacked bar graphsD) A back-to-back stem-and-leaf plotE) A pair of histograms, one above the other, on the sameaxis. www.medpagetoday.com/NeurologyThe partially completed ANOVA table given in this problem is taken from the article “Perception of Spatial Incongruity” (Journal of Nervous and Mental Disease), in which the abilities of three different groups to identify a perceptual incongruity were assessed and compared. All individuals in the experiment had been hospitalized to undergo psychiatric treatment. There were 21 individuals in the depressive group, 32 individuals in the functional “other” group, and 21 individuals in the brain-damaged group. (round all results to two decimal places) Fill the ANOVA table below: (round all except degrees of freedom to 2 decimal places) Source of Variation Degrees of Freedom Sum of Squares Mean Square Treatments 76.09 Error Total 1123.14 What is the F test statistic here? (round to 2 decimal places) _________
- Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano found that the birth weights of babies in the United States are not symmetric ("Are babies normal?" The American Statistician, Nov 1999, 53:4). However, they also found that when infants born outside of the "typical" 37-43 weeks and infants born to mothers with a history of diabetes are excluded, the birth weights of the remaining infants do follow a Normal model with mean μ = 3432 g and standard deviation σ = 482 g. The following questions refer to infants born from 37 to 43 weeks whose mothers did not have a history of diabetes.Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano found that the birth weights of babies in the United States are not symmetric (\"Are babies normal?\" The American Statistician, Nov 1999, 53:4). However, they also found that when infants born outside of the \"typical\" 37-43 weeks and infants born to mothers with a history of diabetes are excluded, the birth weights of the remaining infants do follow a Normal model with mean μ = 3432 g and standard deviation σ = 482 g. The following questions refer to infants born from 37 to 43 weeks whose mothers did not have a history of diabetes. Compute the z-score of an infant who weighs 3762 g. (Round your answer to at least two decimal places.) Approximately what fraction of infants would you expect to have birth weights between 2890 g and 3410 g? (Express your answer as a decimal, not a percent, and…Using all 1991 birth records in the computerized national birth certificate registry compiled by the National Center for Health Statistics (NCHS), statisticians Traci Clemons and Marcello Pagano found that the birth weights of babies in the United States are not symmetric ("Are babies normal?" The American Statistician, Nov 1999, 53:4). However, they also found that when infants born outside of the "typical" 37-43 weeks and infants born to mothers with a history of diabetes are excluded, the birth weights of the remaining infants do follow a Normal model with mean μ = 3402 g and standard deviation σ = 492 g. Let X be the weight of a randomly selected infant born from 37 to 43 weeks whose mother did not have a history of diabetes. What is the distribution of X? X ~ N (,) Please show the following answers to 4 decimal places. If a healthy infant is randomly chosen, find the probability that the birth weight is below 3156 g. If a healthy infant is randomly chosen, find the…