What can we reasonably conclude Early-life antibiotic exposure may lead to increased body mass in children. O Early-life antibiotic exposure leads to obesity. O The microbiome regulates weight in children. Early-life antibiotic exposure causes children to gain more weight.
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A scatter plot is a graphical representation of two variables to investigate if there exists an association between them. There are three types of scatter plots. If there is an upward trend, the increase or decrease of one variable is associated with the increase or decrease of other. If there is a downward trend the increase of one variable is associated with the decrease of other variable and vice-versa.
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- What are the effects of repeated exposure to an advertising message? The answer may depend on both the length of the ad and how often it is repeated. And experiment investigated this question using undergraduate students. All students viewed a 40 minute television program that included ads for a new smartphone. Some subjects saw a 30-second commercial others, a 90-second commercial. The same commercial was shown either one, three, or 5 times during the program. After viewing, all students answered questions about there recall of the ad, their attitudes towards the smartphone, and there intentions to purchase it. In this experiment, the length of the commercial and the number of times it was shown are. (A) the responses. (B) the blocking variables. (C) lurking variables. (D) the explanatory variables.Survival Analysis: An observational study is conducted to compare the survival experience of individuals with brain cancer following treatment. Participants undergo treatment and are followed until the time of recurrence, until they are lost to follow-up or up to 40 weeks, whichever comes first. The following table details the experiences of participants undergoing radiotherapy alone or radiotherapy and surgery. The data below are week to recurrence or week of last contact. Using the Kaplan-Meier approach, what is the Survival Probability at the end of 8 weeks for radiotherapy alone? (Hint: set up a table for radiotherapy including columns for time (week), Nt, Dt, Ct, and St+1) Radiotherapy Alone Surgery/Radiotherapy Weeks to recurrence Week of Last Contact (no recurrence) Weeks to recurrence Week of Last Contact (no recurrence) 2 3 2 10 2 4 6 14 2 5 10 21 5 6…asap please
- Does it pay to stay in school? A report looked at the median hourly wage gain per additional year of schooling in 2007. The report states that workers with a high school diploma had a median hourly wage that was 13% higher than those who had only completed 11 years of school. Workers who had completed 1 year of college (13 years of education) had a median hourly wage that was 14% higher than that of the workers who had completed only 12 years of school. The added gain in median hourly wage for each additional year of school is shown in the accompanying table. The entry for 15 years of schooling has been intentionally omitted from the table. Years of Schooling 2007 Median Hourly Wage Gainfor the Additional Year (percent) 12 13 13 14 14 16 16 19 17 21 18 22 (a) Use the given data to predict the median hourly wage gain for the 15th year of schooling. % (b) The actual wage gain for 15th year of schooling was 18%. How close was the…how do i answer this?Survival Analysis: An observational study is conducted to compare the survival experience of individuals with brain cancer following treatment. Participants undergo treatment and are followed until the time of recurrence, until they are lost to follow-up or up to 40 weeks, whichever comes first. The following table details the experiences of participants undergoing radiotherapy alone or radiotherapy and surgery. The data below are week to recurrence or week of last contact. Using the Kaplan-Meier approach, what is the Survival Probability at the end of 34 weeks for surgery/radiotherapy? (Hi nt: set up a table for Surgery/radiotherapy including columns for time (week), Nt, Dt, Ct, and St+1) Radiotherapy Alone Weeks to Surgery/Radiotherapy Weeks to Week of Last Contact (no recurrence) Week of Last Contact (no Irecurrence recurrence recurrence) 10 3 2 2. 4 6 14 10 21 5 23 29 8 32 34
- Survival Analysis: An observational study is conducted to compare the survival experience of individuals with brain cancer following treatment. Participants undergo treatment and are followed until the time of recurrence, until they are lost to follow-up or up to 40 weeks, whichever comes first. The following table details the experiences of participants undergoing radiotherapy alone or radiotherapy and surgery. The data below are week to recurrence or week of last contact. Using the Kaplan-Meier approach, what is the Survival Probability at the end of 8 weeks for radiotherapy alone? (Hint: set up a table for radiotherapy including columns for time (week), Nt, Dt, Ct, and St+1) Radiotherapy Alone Weeks to Surgery/Radiotherapy Weeks to Week of Last Contact (no recurrence) Week of Last Contact (no recurrence recurrence recurrence) 3 2 10 2. 4. 14 2 5 10 21 5 23 29 8 32 34Omega-3 An experiment that showed that high doses ofomega-3 fats might be of benefit to people with bipolardisorder involved a control group of subjects whoreceived a placebo. Why didn’t the experimenters justgive everyone the omega-3 fats to see if they improved?Price and Marketing How influenced are consumers by price and marketing? If something costs more, do our expectations lead us to believe it is better? Because expectations play such a large role in reality, can a product that čosts more (but is in reality identical) actually be more effective? Baba Shiv, a neuroeconomist at Stanford, conducted a study involving 204 undergraduates. In the study, all students consumed a popular energy drink which claims on its packaging to increase mental acuity. The students were then asked to solve a series of puzzles. The students were charged either regular price ($1.89) for the drink or a discount price ($0.89). The student receiving the discount price were told that they were able to buy the drink at a discount since the drinks had been purchased in bulk. The authors of the study describe the result: "the number of puzzles solved was lower in the reduced-price condition (M = 4.2) than in the regular-price condition (M 5.8)...p < 0.0001". Shiv B.,…
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