Uppgiftsinlämning 5

Ludvig Londos och Kalle Palm (laddy_ludde@msn.com, kalle.palm@gmail.com)

6.01

(a)

d

(b)

salary

sex

©

salary

years.exp

(d)

promo

race

(e)

laid.off

age

7.01

(a)

3

(b)

17

©

4

(d)

-7

(a)

1.22

(b)

0.27

©

0.12

(d)

-0.04

(a)

8

(b)

3

©

-4

7.05

(a)

mean(age, data = subset(CPS85, married == "Single"))

## [1] 32.33

Svar: 32

(b)

mean(age, data = subset(CPS85, married == "Single")) - mean(age, data = subset(CPS85, 
    married == "Married"))

## [1] -6.877

Svar: Singlar är 7 år yngre.

©

mean(time, data = subset(swim, sex == "F"))

## [1] 65.19

Svar: 65

(d)

mean(ccf, data = subset(ut, month == 10))

## [1] 42.12

7.10

Svar: B (8.5)

Svar: B (0.25 cm)

Svar: F

7.11

(a)

Minskning med 0.26 sek

(b)

Minskning med 0.32 sek

©

Minskning med 0.17 sek

7.14

(a)

Negativ

(a)

Negativ

(a)

Osäker.