part 9

Question 1

how do we do internal control (house)

Answer 1

monitoring, information & communication (risk assessment, control activities), control environment

Question 2

record-to-report process

Answer 2

Inventory account, AP, AR, Cash account

Question 3

AR analysis to check the reliability of data

Answer 3

check if cash_not_ar = 1 have a collection_date

is the end balance of AR correct recorded (internal control weaknesses)

can AR be collected (impact liquidity)

sales recorded in the right period (wrong financial statement)

transaction information match trial balance information

Question 4

ceiling function

Answer 4

used to ensure that the resulting values are integers

Question 5

rnorm(nrow(sku), 2, 1)

Answer 5

random normal distribution with a mean of 2 and a standard deviation of 1.

Question 6

abs()

Answer 6

takes the absolute value of each element (ensures it to be positive)

Question 7

ceiling()

Answer 7

rounds each positive value up to the nearest integer

Question 8

nrow()

Answer 8

determines the number of random values to be generated from a … distribution

Question 9

rpois

Answer 9

generates random samples from a poisson distribution

Question 10

rbinom

Answer 10

generates random numbers from a binomial distribution

Question 11

rbinom(no_of_sales, 1, 0.2)

Answer 11

no_of_sales is random samples you want to create, 1 = number of trials for each sample –> binary (0 or 1) indicating whether … was a succes or not
0.2 = probability of succes for each trial

Question 12

replace = T

Answer 12

= TRUE, means that an element can be selected more than once. (FALSE means that each element can only be selected once)

Question 13

sample()

Answer 13

function used for random sampling in R