I need this in R code please: Use the dataset ’juul’ in package ’ISwR’ to answer...

I need this in R code please: Use the dataset ’juul’ in package ’ISwR’ to answer the question. (1) Conduct one-way ANOVA test to test if the mean of igf1 of each level of tanner are the same? (2) What is the mean of igf1 in each level of tanner? (3) If there is any difference, which ones appear to be different? (Use pairwise t test for each pair of level with bonferroni method)

Solutions

Expert Solution

1) From the given information, ANOVA table is created in R, the output is

since P-value = 0.000 < alpha 0.05 so we reject H0

Thus we conclude that there is significance difference at least two levels of means

2) Pairwise comparison:

Since p-value of (c and d) and (e and c) > 0.05 and p-value of all other pairs are < 0.05

Therefore, there is significance difference between means of the levels of c and d also e and c

milcah answered 6 months ago

Next > < Previous

Related Solutions

In R: Consider dataset “juul” from library “ISwR”. (juul is a built in data set) Are...

In R: Consider dataset “juul” from library “ISwR”. (juul is a built in data set) Are the means of igf1 equal among tanner groups at 5% level? Please use the six step process to test statistical hypotheses for this research problem. Note: You need to convert tanner from numeric to factor type and ignore all the NAs.

Solve it by R Use the ‘cement’ dataset in ‘MASS’ package to answer the question. (1)...

Solve it by R Use the ‘cement’ dataset in ‘MASS’ package to answer the question. (1) Conduct the multiple linear regression, regress y value on x1, x2, x3 and x4 (without intercept). Report the estimated coefficients. Which predictor variables have strong linear relationship with response variable y at significance level 0.05? (2) What is the adjusted R square of your regression? What is the interquartile range (IQR) of the residuals from your regression? (3) Conduct a best subset regression (with...

ANSWER USING R CODE Using the dataset 'LakeHuron' which is a built in R dataset describing...

ANSWER USING R CODE Using the dataset 'LakeHuron' which is a built in R dataset describing the level in feet of Lake Huron from 1872- 1972. To assign the values into an ordinary vector,x, we can do the following 'x <- as.vector(LakeHuron)'. From there, we can access the data easily. Assume the values in X are a random sample from a normal population with distribution X. Also assume the X has an unknown mean and unknown standard deviation. With this...

Please use Statistical Software R Consider a dataset called fandango in fivethirtyeight package: Identify the Top...

Please use Statistical Software R Consider a dataset called fandango in fivethirtyeight package: Identify the Top 5 best rated and Top 5 worst rated movies based on rottentomatoes. Identify the Top 5 best rated and Top 5 worst rated movies based on the average of three users’ scores (rottentomatoes_user, metacritic_user, and imdb). Visualize the difference between Fandango stars and actual Fandango ratings. Comment on what you see. Construct a formal test to see if there is a significant difference between...

R code: ## 2. Basic dplyr exercises ## Install the package `fueleconomy` and load the dataset...

R code: ## 2. __Basic dplyr exercises__ ## Install the package `fueleconomy` and load the dataset `vehicles`. Answer the following questions. install.packages("fueleconomy") library(fueleconomy) library(dplyr) library(tidyr) data(vehicles) e. Finally, for the years 1994, 1999, 2004, 2009, and 2014, find the average city mpg of midsize cars for each manufacturer for each year. Use tidyr to transform the resulting output so each manufacturer has one row, and five columns (a column for each year). I have included sample output for the first...

USE R CODING! Pleaseee I need the code With R coding Obs: it supposed to use...

USE R CODING! Pleaseee I need the code With R coding Obs: it supposed to use probability density function like X ~ Binomial( n ,p ) dbinom(X=?, n, prob) pbinom(X=?, n, prob) rbinmo(幾個符合二項分配的X, n, prob) X~Poisson (lamda) dpois(X=?, lamda) ppois (X=?, lamda) rpois (X, lamda) **Suppose the random variable X obeys the binomial allocation B (n=100, p=0.1) (a) Use X as the binomial allocation to calculate P(12≤X≤14) (b) In practice, when np ≥ 5 and n(1-p) ≥ 5, X will...

I need the code in SAS and R and outputs please 2. The data below come...

I need the code in SAS and R and outputs please 2. The data below come from a study investigating a method of measuring body composition, and give the body fat percentage (% fat), age and sex for 18 adults aged between 23 and 61 years. Source: Mazess, R.B., Peppler, W.W., and Gibbons, M. (1984) Total body composition by dual-photon (153GD) absorptiometry. American Journal of Clinical Nutrition, 40, 834-839. age % fat sex 23 9.5 male 23 27.9 female 27...

( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please). (i need...

( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please). (i need references URL Link) General Question ** How to perform logistic regression in SPSS?

( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please) (i need...

( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please) (i need your reference URL Link) 1. Discuss charismatic traits and behaviors of a leader. How a person can manage relationship in workplace? i need more explain ( i need Unique answer, please) *** Please i need Unique answer, if you don't have unique answer don't answer ***

( i need Unique answer, don't copy and paste, please) (dont' use handwriting, please) (i need...

Subjects