Mathematics, 05.04.2021 21:00 kadenbaker4788

A security system company wants to know whether there are differences in the time of day of residential and commercial burglaries. They read the records from a randomly selected sample of 60 of the 830 residential
burglaries and 60 of the 447 commercial burglaries in the past year from their town database.
Suppose that 65% of the residential burglaries and 31% of the commercial burglaries happened during the day.
The company plans to look at the difference (Pr - Pc) between the proportions of daytime burglaries in each
sample.
Consider the formula:
PA (1-PA)
PE (1 - PB
OPAPU
1
MA
NB
Why is it not appropriate for the company to use this formula for the standard deviation of Pr - pc?

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:00, alex8366

Find x to the nearest hundredth place

Answers: 2

continue

Mathematics, 21.06.2019 17:00, alannismichelle9

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

Answers: 1

continue

Mathematics, 21.06.2019 18:00, Sallyjoe9630

Find the equation using the point (4,8)

Answers: 2

continue

Mathematics, 21.06.2019 18:30, lionscoachjose

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Answers: 2

continue

You know the right answer?

A security system company wants to know whether there are differences in the time of day of resident...