Question: R language Exercise 1.2: Creating a histogram of values drawn from a Normal distribution (a) Use the following commands to generate 25 z-values and

R language Exercise 1.2: Creating a histogram of values drawn from a

R language Exercise 1.2: Creating a histogram of values drawn from a Normal distribution (a) Use the following commands to generate 25 z-values and form a histogram. Does the result look surprising? Why? > Z=rnorm (25) > hist (2) (b) Try using 200 or more points. Is that better? Explain. (c) By default, R uses too few bins for large sample sizes. Add the argument breaks-seq(-4,4,0.1) and see what happens. Try ?hist if you get lost.

Step by Step Solution

★★★★★

3.41 Rating (151 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The result of the command histZ will create a histogram of the 25 zvalues generated from a Norma... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

What happens if you try to use 1'Hospital's Rule to find the limit? Evaluate the limit using another method. lim 1

Using the sample sizes determined in Problem 8- 25 and the number of deviations shown here, determine the sample deviation rate, the computed upper deviation rate, and the auditors conclusion (i. e.,...

For Exercise 2, why is it better to use values of adjusted R2 instead of simply using values of R2?

A random sample of size n=19 is drawn from a normal distribution for which 2 =12.0. In what range are we likely to find the sample variance, s 2 ? Answer the question by finding two numbers a and b...

The following financial statements were provided by Zytel Communications Co. The owner, Daniel Zytel, is meeting with an investor who is interested in investing in the company. The investor has...

Use Excels functions (not @RISK) to generate 1000 random numbers from a normal distribution with mean 100 and standard deviation 10. Then freeze these random numbers. a. Calculate the mean and...

Suppose you are going to invest equal amounts in three stocks. The annual return from each stock is normally distributed with mean 0.01 (1%) and standard deviation 0.06. The annual return on your...

Lets simulate the sampling distribution related to the disc jockeys concern for length of cut in Exercise 7. 62. a. Use a computer to randomly generate 50 samples, each of size 10, from a normal...

During an 8-hour shift of golf-ball production, one golf ball is randomly selected from each 2 minutes worth of output. The ball is then tested for liveliness by rolling it down a grooved, stainless-...

Use software to conduct an ANOVA to analyze the Memory data set using a block design. The variables in the ANOVA should be Student, Wordlist, Distracter, and a Wordlist* Distracter interaction term....

In 2009, a research company surveyed adults about the number of cups of coffee they drink per day and per week. The percentages are shown Number of Cups Percentage to the right. Two or more cups a...

Q1: What is managerial accounting, and how does it differ from financial accounting? Q2: What are some common techniques used in managerial accounting?

Q1: What are financial ratios, and why are they important? Q2: Explain the difference between liquidity ratios and profitability ratios with examples.

Q1: What is the purpose of budgeting in a business? Q2: What is the difference between static and flexible budgets?

Q1: Why is ethics important in accounting? Q2: What are some common ethical issues faced by accountants?

Q1: What is the purpose of investment analysis in accounting? Q2: What are some common methods used in investment analysis?

Suppose the term structure of interest rates has these spot interest rates: r1 = 5.4%. r2 = 5.2%, r3 = 5.0%, r4 = 4.8%, and r5 = 6.4%. a. What will be the 1-year spot interest rate in three years if...

What can scientists learn by comparing the fossilized skeletons of extinct primates with the bones of modern species?

For each f C[0. 1] define L,(f) = F, where Show that L is a linear operator on C[0, 1] and then find L(ex) and L(x2). F(x) = f(t)dt 0 x 1

Let A be a 3 3 matrix and suppose that 2a1 + a2 - 4a3 = 0 How many solutions will the system Ax = 0 have? Explain. Is A nonsingular? Explain.

Let A be an 8 x 5 matrix of rank 3, and let b be a nonzero vector in N(AT). (a) Show that the system Ax = b must be inconsistent. (b) How many least squares solutions will there be to the system Ax =...

For parts of this question, it is useful to read Investment and Saving in Globalized Financial Markets in the Additional Topics section of this book's MyEconLab. a. Suppose Canada were a closed...

Suppose in the real world you observe that black basketball players get paid more than white basketball players. Do you conclude that discrimination is present? Explain why or why not.

Suppose there are two types of basketball playersblack and white. Suppose also that, on average, black players are no better and no worse than white players. Furthermore, suppose there are only two...