1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kumpel [21]
3 years ago
13

A study of lobster trap placement used a 90​% confidence interval to estimate the mean trap spacing​ (in meters) for the populat

ion 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.'\
Mathematics
1 answer:
prohojiy [21]3 years ago
5 0

Answer:

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

=1.645(\frac{11.9}{\sqrt{n} } ) = 6\\\sqrt{n} =\\3.2685

n =10.644

=11

You might be interested in
What happens to the slope when a line with a positive slope gets close to the vertical
alexandr1967 [171]
When its gets closer, it gets larger

8 0
4 years ago
1+4v<9 can you guys help me?
Elena L [17]

Answer:

v < 2

Step-by-step explanation:

1+4v<9

Subtract 1 from each side

1-1+4v<9-1

4v < 8

Divide each side by 4

4v/4 <8/4

v < 2

4 0
3 years ago
Teo earns 47.25$ in 7 h of work at Beck’s Burgers. How much will he earn in 12 hours?
goldenfox [79]

Answer:

He will earn <u>$81</u> in 12 hours.

Step-by-step explanation:

Given:

Teo earns 47.25$ in 7 hours of work at Beck’s Burgers.

Now, to find the money he will earn in 12 hours.

As, given Teo earns 47.25$ in 7 hours of work.

So, to get the money he will earn in 12 hours we solve by using unitary method:

If Teo earns in 7 hours $47.25.

Then, in 1 hour he earns = \frac{47.25}{7}

Thus, in 12 hours he will earn = \frac{47.25}{7} \times 12

                                                 = 6.75\times 12

                                                 =  \$81.

Therefore, he will earn $81 in 12 hours.  

7 0
4 years ago
Kara had a savings account balance of $153 on Monday. On Tuesday, she had six withdraws of $15.72 and a deposit of $235.15. What
Mars2501 [29]

Answer: 219.4

Step-by-step explanation:

3 0
3 years ago
Whats the Quotient and remainder of 371 divided by 8
AURORKA [14]

Answer:

46.375

Step-by-step explanation:

371/8 = 46 (remainder 0.375)

7 0
4 years ago
Other questions:
  • The perimeter of a square is 24.46 inches. What is the side length of the square?
    5·2 answers
  • Which equation best fits the word problem below?
    14·1 answer
  • F(x)=x^2 g(x)=x^2-8 we can think of g as a translated (shifted) version of f
    9·1 answer
  • Solve the literal equation for y; cy 3=6d-2y
    10·1 answer
  • What is the solution to this system of equations x-3y=-2 x+3y=16
    10·1 answer
  • Which equation represents an ellipse with foci at (3, 2) and (-9, 2)
    8·2 answers
  • What shows how many molecules there are of a chemical formula? ​
    7·1 answer
  • I need help (links will be reported and wrong answers)
    12·1 answer
  • PLEASE HELP!!
    11·1 answer
  • 1. Solve for X ~ B(5,0.85), for x = 3.<br><br> 0.225<br> 0.138<br> 0.583<br> 0.024
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!