A+ Guide to IT Technical Support (Hardware and Software) (MindTap Course List)
9th Edition
ISBN: 9781305266438
Author: Jean Andrews
Publisher: Cengage Learning
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Chapter 1, Problem 7RTB
Explanation of Solution
Given:
Hard drives and motherboard
To find: The technology standards which are used for the hard drives in order to interface it with the motherboard in a system.
Solution:
The motherboard which is generally known as the main board. It is a type of circuit board in the computer with a socket to hold the processor or CPU.
A hard drive is basically a device which is used to store the data and programs in a computer.
There are two standards published by the ANSI: SATA and PATA
SATA is known as the serial ATA...
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here is example 7.6## Example 7.6 Suppose the sample population is χ 2 (2), which is non-normal but with same variance 4. ▶ Repeat the simulation, but replacing the N(0, 4) samples with χ 2 (2) samples. ▶ Calculate the empirical confidence level.(Empirical confidence level) n <- 20 alpha <- 0.05 UCL <- replicate(1000, expr = { x <- rchisq(n,df=2) (n-1)*var(x)/qchisq(alpha,df=n-1) }) sum(UCL >4) mean(UCL > 4) ## t.test function n <- 20 x <- rnorm(n,mean=2) result <- t.test(x,mu=1) result$statistic result$parameter result$p.value result$conf.int result$estimate
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using r language
Chapter 1 Solutions
A+ Guide to IT Technical Support (Hardware and Software) (MindTap Course List)
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