Quastion 6Research has shown that ofese adult maleshave lower level's of festasterone Howeyert is unknown whether this same paternoccurs in adolescents A study was'conductethat measusedthe testasterond (in nmol/Itres in fwo independent, iandom Sample'sThe furst samp le included 1o obesea dolescents.Testosterone levelsHealthy WaightObese Adolescents-(n=D10)0.160:30 0311060020Adolesdents0.04036 010 0310.190-940-100.600.F3 0-941 b39|Mean- 0.2550Variana=0.0061Mean =0-5483Vanance 0.1389a) based on thLs sgmple informationdoes it appearthat the pop ulation vananas,are equal 'runequal.? txplain.5)1s there a sgnificant dffecence in thearerage testpstenonelevels befween obeseand tealthy,Weigt adolescents: To answerthis Conduct an appropnate bypothesistest using the,P-value method and anufıçant lulelof 540.What can you CONJlude about these two, qroups of adobatOWhat assumytion must be true for theresult in Porf (b) to be vellid.

Let X1 denotes the Obese adolescents and X2 denotes the healthy adolescents respectively. Two…

Answered: Research has shown that obese adult…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 54 men and 70 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then recorded. The following results were obtained. Two sample T for Men vs Women N Mean StDev SE Mean Men Women 98% CI for mu Men - mu Women (- 12.20, - 1.00) T-Test mu Men = mu Women (vs H2 O C. Ho: H1 = H2; Ha: H1 #H2 (b) Identify the P-value and state the researcher's conclusion if the level of significance was a = 0.01. What is the P-value? P-value =
An advertising firm wishes to demonstrate to its clients the effectiveness of the advertising ca Español it h bivariate data on twelve recent campaigns, including the cost of each campaign (denoted by X, in millions percentage increase in sales (denoted by y) following the campaign, were presented by the firm. A scatter 1. Also given is the product of the campaign cost and the percentage increase in sales for each of the twel written in the column labelled "XY", may aid in calculations.) Campaign cost, X (in millions of dollars) 3.30 2.35 2.07 3.97 2.26 1.27 3.10 3.03 1.63 1.61 3.53 3.92 Send data to calculator Increase in sales, y (percent) 6.55 6.62 6.70 6.80 6.54 6.38 6.65 6.92 6.66 6.20 6.76 7.05 xy 21.615 15.557 13.869 26.996 14.7804 8.1026 20.615 20.9676 10.8558 9.982 23.8628 27.636 Increase in sales (percent) Figure 1 7.2+ 7+ 6.8- 6.6 6.4- 6.2. X x 1.5 2 2.5 Campaign cos (in millions of doll 3
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.
Please show work on paper
ignmunt Stores Ex oive opP puestion 2 of 16 Suppose the histogram shows the distribution of test scores for Ms. Bassoe's 10- first grade class. 8- Select the terms that describe the shape 6- of the histogram. O right (positively) skewed O no outliers present O left (negatively) skewed O an outlier present symmetrical 36 40 42 44 46 48 50 52 34 O bimodal Test score
9
A researcher wants to use the most powerful test Choose one One way anova or two way chi or Mann Whitney
Determine the cri tical z-score corresponding to a = 0.2 in a left-tail test. crititical z-score = [three decimal accuracy]
Please I need help with these questions!!!
In one of the articles for review this week, Ondersma et al (2012) the researchers studied pretreatment change in pregnant women enrolled in substance abuse, In their research results they report the following: Wilcoxen signed rank value = −1140.5, p < .001 Interpreting these result (statement above), was there a statistically significant difference between the participants alcohol/drug use pre-treatment and first treatment?

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