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0 人参与  2019-08-14 08:24  分类 : 网络兼职日结  点这评论

代写获利平台以及其余电商平台差别,小红书是做社区起家。6年前,小红书初创人毛文超以及瞿芳灵敏地察觉到国内外购物信息分比方过错称的题目,降生了《小红书入境购物攻略》。

随后,深晚记者以替孩子购买 " 写功课神器 " 为由,向深圳多家客服雷同。多名客服人员向深晚记者泄漏,最后计划这种板滞人是用于画图和烦琐的抄写事变,最近才知道有门生用来抄写功课。少数客服的复兴中,都提到发起不给孩子利用,并把板滞用到故意思的事变上。

" 写字机器人 " 热销引众多家长担忧

学校内鬼。这是最简单的也是最精准的方法。有的学校教师年夜约事恋人员为了某些蝇头小方便擅自将信息卖给第三方。跟着学校监管的加强,这种现象已经越来越少。

总而言之,在业余代笔文章的范畴只要业余的代笔平台本领够对于其所代笔的文章品质更有保证,这也是咱们挑选的范例。

感谢年夜家浏览,素材源于收集,文章为小编原创,推辞剽窃。感谢点赞并关注小编,我会继承主动其大家创作出更多优良的作品。

STA 212 Assignment # 2Question #1How do you choose to argue? In Thinking and Reasoning (Apr. 2007), researchers at ColumbiaUniversity conducted a series of studies to assess the cognitive skills required for successfularguments. One study focused on whether one would choose to argue by weakening theopposing position or by strengthening  the favored position. A sample of 52 graduate studentsin psychology was equally divided into two groups. Group 1 was presented with 10 items suchthat the argument always attempts to strengthens the favored position. Group 2 was presentedwith the same 10 items, but in this case the argument always attempts to weaken thenonfavored position. Each student then rated the 10 arguments on a five-point scale from veryweak (1) to very strong (5). The variable of interest was the sum of the 10 item scores, calledthe total rating. Su妹妹ary statistics for the data are shown in the accompanying table. Comparethe mean total ratings for the two groups at α = .05. Give a practical interpretation of theresults in the words of the problem.Question #2The placebo effect and pain. According to research published in Science (Feb. 20, 2004), themere belief that yo  u are receiving an effective treatment for pain can reduce the pain youactually feel. Researchers tested this placebo effect on 24 volunteers as follows: Each volunteerwas put inside a magnetic resonance imaging (MRI) machine for two consecutive sessions.During the first session, electric shocks were applied to their arms and the blood oxygen level–dependent (BOLD) signal (a measure related to neural activity in the brain) was recorded duringpain. The second session was identical to the first, except that, prior to applying the electricshocks, the researchers smeared a cream on the volunteer’s arms. The volunteers wereinformed that the cream would block the pain when, in fact, it was just a regular skin lotion(i.e., a placebo). If the placebo is effective in reducing the pain experience, the BOLDmeasurements should be higher, on average, in    the first MRI session than in the second.a. Identify the target parameter for this study.b. What type of design was used to collect the data?c. Give the null and alternative hypotheses for testing the placebo effect theory.d. The differences between the BOLD measurements in the first and second sessions werecomputed and su妹妹arized in the study as follows: nd = 24, x-d = .21, sd = .47. Use thisinformation to calculate the test statistic.e. The p- value of the test was reported as p- value = .02. Make the appropriate conclusion at α =.05.Question #3Hygiene of handshakes, high fives, and fist bumps. Refer to the American Journal of InfectionControl (Aug. 2014) study of the hygiene of hand greetings, Exercise 7.22 (p. 409). The numberof bacteria transferred from a gloved hand dipped into a culture of bacteria to a second glovedhand contacted  by either a handshake, high five, or fist bump was recorded. Recall that theexperiment was replicated only five times for each contact method and the data used tocompare the mean percentage of bacteria transferred for any two contact methods. Therefore,for this independent-samples design, n1 = n2 = 5. Suppose you want to estimate the differencebetween the mean percentage of bacteria transferred for the handshake and fist bumpgreetings to within 10% using a 95% confidence interval.a. Define the parameter of interest in this study.b. Give the value of za>2 for the confidence interval.c. What is the desired sampling error, SE?d. From the data provided in Exercise 7.22, find estimates of the variances, for thetwo contact methods.e. Use the information in parts a–d to calculate the number of replicates for each contactmethod required to obtain t  he desired reliability. Assume an equal number ofreplicates.Question #4Does sleep improve mental performance? Are creativity and problem solving linked toadequate sleep? This question was the subject of research conducted by German scientists atthe University of Lübeck (Nature, Jan. 22, 2004). One hundred volunteers were divided into twoequal-sized groups. Each volunteer took a math test that involved transforming strings of eightdigits into a new string that fit a set of given rules, as well as a third, hidden rule. Prior to takingthe test, one group received eight hours of sleep, while the other group stayed awake all night.The scientists monitored the volunteers to determine whether and when they figured out thethird rule. Of the volunteers who slept, 39 discovered the third rule; of the volunteers whostayed awake all night, 15 discovere  d the third rule. From the study results, what can you inferabout the proportions of volunteers in the two groups who discover the third rule? 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