Computers and Technology, 15.07.2020 15:01 luceridiaaz

Import the "reacttimes" data set and consider the 50 observations of the variable "Times" to be a sample from a larger population. Find a 99% confidence interval for the population mean. Construct a normal quantile plot and comment on the appropriateness of the procedure.

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Answer from: kelly3215

This question is incomplete, here is the complete question:

Import the "react times" data set and consider the 50 observations of the variable "Times" to be a sample from a larger population. Find a 99% confidence interval for the population mean. Construct a normal quantile plot and comment on the appropriateness of the procedure.

Times

0.12

, 0.3

, 0.35

, 0.37

, 0.44

, 0.57

, 0.61

, 0.62

, 0.71

, 0.8

, 0.88

, 1.02

, 1.08

, 1.12

, 1.13

, 1.17

, 1.21

, 1.23

, 1.35

, 1.41

, 1.42

, 1.46

, 1.5

, 1.52

, 1.54

, 1.6

, 1.61

, 1.68

, 1.72

, 1.86

, 1.9

, 1.91

, 2.07

, 2.09

, 2.16

, 2.17

, 2.2

, 2.29

, 2.32

, 2.39

, 2.47

, 2.6

, 2.86

, 3.43

, 3.77

, 3.97

, 4.54

, 4.73

confidence interval = ( 1.3524, 2.1323

Explanation:

so we have 50 observations/ react times hence we use z-test for the mean

SUM OF OBSERVATION (∑x) = 87.12

SUM OF SQUARE = (∑x²) = 207.9336

100 ( 1 - ∝ ) % confidence interval for population mean is

mean = 87.12 / 50 = 1.7429

S² = I/49 ( 207.9336 - 50(1.7429)²)

S² = 1.145627

S = √1.145627 = 1.07034

FOR ∝ = 0.01

Z₍ ₀.₀₁/₂₎ = 2.57583

so confidence interval = ( 1.7429 - 2.57583 × 1.07039/√50, 1.7429 + 2.57583 × 1.07039/√50)

confidence interval = ( 1.3524, 2.1323 )

Import the reacttimes data set and consider the 50 observations of the variable Times to be a sa

Answer from: Quest

explanation:

Answer from: Quest

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?

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Import the "reacttimes" data set and consider the 50 observations of the variable "Times" to be a sa...