Question

In: Statistics and Probability

In R/ R Studio, what code would I enter to find the answers to these questions?...

In R/ R Studio, what code would I enter to find the answers to these questions?

What is the code to find the descriptive/ summary statistics of all variables in a data set and how do i find the mean values?

What is the code to measure the skewness measure of delta time for all of all the values in the data set?

What is the code to draw a histogram and q-q plot of the natural log of a variable?

What does the histogram and q-q plot have in common?

Solutions

Expert Solution


Related Solutions

R studio questions Write up your answers and paste the R code Copy and paste all...
R studio questions Write up your answers and paste the R code Copy and paste all plots generated. First create a sample drawn from a normal random variable. R has many distributions for which you can get probabilities and draw random numbers. We are going to use the normal. Go to help in R and type in rnorm. You will see a write up for functions associated with the normal distribution. dnorm is the density; pnorm is the probability distribution...
Good morning, I cannot find the answers to these questions on my book and I would...
Good morning, I cannot find the answers to these questions on my book and I would like some help please. 1. Customer value is defined as the customer's evaluation of the perceived difference between all the benefits and all the costs of a marketing offer relative to those of competing offers. T/F 2. An aspect of managing service differentiation is in the company's service delivery. T/F 3. After carefully questioning your major suppliers and resellers, you ascertain they do not...
THIS QUESTION REQUIRES THE USE OF R STUDIO. ANY ANSWERS GIVEN THAT ARE NOT IN R...
THIS QUESTION REQUIRES THE USE OF R STUDIO. ANY ANSWERS GIVEN THAT ARE NOT IN R STUDIO CODE WILL NOT SUFFICE. SOLVING WITHOUT THE USE OF R STUDIO IS NOT ACCEPTABLE. The previous question was: Annual salaries for a large company are approximately normally distributed with a mean of 49000 dollars and a standard deviation of 2000 dollars. One manager claims that all of his direct reports are paid "above the 75th percentile" for the company. What is the minimum...
1. Use R Studio: Include R Code A survey is taken of 250 students, and a...
1. Use R Studio: Include R Code A survey is taken of 250 students, and a phat of 0.48 is found. The same survey is repeated with 1000 students, and the same phat value is found. Compare the two 95% confidence intervals. What is the relationship between them? Is the margin of error for the second one four times smaller? If not, how much smaller is it?
r studio answer to these questions What is the intercept parameter (2dp) for the regression equation...
r studio answer to these questions What is the intercept parameter (2dp) for the regression equation of height (y) versus age (x) using the pine_growth.csv data? What is the total amount of variation explained by the regression model (SSr) of height (y) versus age (x) using the pine_growth.csv data? What is the residual error sum of squares (SSe) of a regression model of height (y) versus age (x) using the pine_growth.csv data. Use your regression equation fitted to the pine_growth.csv...
*Please provide r studio code/file* 1) Find the equation of the best fit line using least...
*Please provide r studio code/file* 1) Find the equation of the best fit line using least squares linear fit of x,y: set.seed(88) x <- 1:100 y <- jitter(1.5*x+8,amount=10) 2) For question 1, Draw the P=0.95 prediction intervals for y when x=1:150 3) For question 1, Find the equation of the best fit line using median-based linear fit of x,y. 4) For question 3, draw the P=0.95 prediction interval for y # when x=1:150
In r studio, what is a method to find significant variables within an entire dataset?
In r studio, what is a method to find significant variables within an entire dataset?
Using R-Studio please answer the following questions and show your code. 1. Julie buys a take-out...
Using R-Studio please answer the following questions and show your code. 1. Julie buys a take-out coffee from one of two coffee shops on a random basis: Ultimo Coffee and Joe’s Place. This month, she measured the temperature of each cup immediately after purchase, using a cooking thermometer. Sample data is shown below, temperatures are in Fahrenheit. ultimo =  c(171,161,169,179, 171,166,169,178,171, 165,172,172) joes = c(168,165,172, 151,162,158,157,160, 158,160,158,164) State the null and alternative hypothesis in your own words. What type of statistical...
I want this to be solved using R studio or R software, please. Here is the...
I want this to be solved using R studio or R software, please. Here is the example: The data in stat4_prob5 present the performance of a chemical process as a function of sever controllable process variables. (a) Fit a multiple regression modelrelating CO2product (y) to total solvent (x1) and hydrogen consumption (x2) and report the fitted regression line. (b) Find a point estimatefor the variance term σ2. (c) Construct the ANOVA tableand test for the significance of the regression using...
Questions about Enron Scandal I cant seem to find answers for: 1. What was the name...
Questions about Enron Scandal I cant seem to find answers for: 1. What was the name of the questionable accounting practice promoted by Skilling and how did it work? How did Andy Fastow hide losses through accounting practices? 2. What happened in California and how could it have been prevented? 3. What was the role of the Wall Street financial analysts in the Enron fraud and what question did Bethany McLean ask of Enron that the financial analysts did not...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT