Astudy of lobster trap placement used a 90% confidence interval to estimate the mean trap spacing (in meters) for the population of red spiny lobster fishermen fishing in the west coast. how many teams of fisherman would need to be sampled in order to reduce the width of the confidence interval to 6 meters? assume prior knowledge indicates that the trap spacing readings for the population of red spiny lobster taken during a day are approximately normally distributed with a standard deviation of 11.9 meters.'\

Step-by-step explanation:

Given that a study of lobster trap placement used a 90% confidence interval to estimate the mean trap spacing (in meters) for the population of red spiny lobster fishermen fishing in the west coast.

Margin of error = 3 metres (half of width of confidence interval)

STd deviation = 11.9 metres

For 90% confidence interval we have margin of error

=

n =10.644

=11

the correct answer is 5 6 and 7

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column