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Ratling [72]
3 years ago
7

A study will be conducted to investigate whether there is a difference in the mean weights between two populations of raccoons.

Random samples of raccoons will be selected from each population, and the mean sample weight will be calculated for each sample.
Which of the following is the appropriate test for the study?

a) A one-sample z-test for a population proportion.
b) A one-sample t-test for a population mean.
c) A two-sample t-test for a difference between sample means.
d) A two-sample t-test for a difference between population means.
e) A two-sample z-test for a difference between population proportions.
Mathematics
1 answer:
enyata [817]3 years ago
5 0

Answer:

<h2>In this case,the answer would be option d) given in the answer choices or options or  A two-sample t-test for a difference between population means.</h2>

Step-by-step explanation:

  • In Statistics,a two sample test is generally used to examine or compare two different population means with the main objective to verify whether the population means are equal or otherwise.
  • The two sample t-test basically involves the hypothesis testing to determine or verify the equality between two concerned population means.
  • In this case,the two different populations of raccoons are given and the equality of the mean sample weights of the two distinct populations can be determined or evaluated by employing the hypothesis testing method under a two sample t test for measuring difference in two population means.
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Show work please <br>*ill give brainliest<br><br>solve the equation for h.<br>S=LW+WH+HL
NISA [10]
Hey there, Brainiac!

To start this off, let's subtract LW from both sides of the equation.

S - LW = WH + HL

Now, let's use the distributive property on WH+HL.
Using the distributive property, we can change that to H(W+L)

S - LW = H(W+L)

Now, to finish this off, let's divide both sides by (W+L)

\frac{S-LW}{W+L} = H

That's your answer.

Have an awesome day! :)

~collinjun0827, Junior Moderator
3 0
3 years ago
Yesterday tyler ate lunch at his local diner. the bill for his meal came to 8.40, it including sales tax. tyler wants to leave a
Andre45 [30]
Your answer is $1.26
You can solve this problem with or without a calculator, and I don't know if you're allowed one or not so I'll show you both ways

Calculator:
The easiest way to find percentages of values on the calculator is to use the decimal multipliers, which are just the decimal value of the percentage. For example, 50% would be 0.5, 75% would be 0.75 etc. The decimal value of 15% is 0.15, so you would do 8.40 × 0.15 = 1.26

Non-Calculator:
This is a bit longer, but gives you the same answer. To solve without a calculator, you first divide 8.40 by 10 to find 10%, which is 0.84. Now you can divide that by 2 to find 5%, which would be 0.42, and then you add the two values (because 10% + 5% = 15%) to get 1.26

I hope this helps!
4 0
4 years ago
a rectangle that is 30 inches long and 10 inches wide can be divided into two congruent squares. True or false?
Sever21 [200]

Answer:

False

Step-by-step explanation:

To split the rectangle into 2 parts, you can go one of two ways. One way would make the parts 15" by 10", and the other way would make the two parts 30" by 5". Neither way is equal on all sides, which means neither one is a square. That would make the statement false.

                                                                30

_  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _

|                                                                                                                            |

|                                                                                                                            |

|                                                                                                                       5   |

|                                                                                                                            |

| _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _|

|                                                               30                                                         |

|                                                                                                                             |

|                                                                                                                       5    |

|                                                                                                                             |

| _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _ |

                                                          30

 _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _  

|                                15                         |                                15                            |

|                                                             |                                                               |

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|  _  _  _  _  _  _  _  _  _  _  _  _  _  _  |  _  _  _  _  _  _  _  _  _  _  _  _  _  _  _ |

**Pretend my drawings are accurate to the lines, the tops and bottoms are actually 30 and 10 in measurement   :-) **

Hope this helps!

8 0
3 years ago
Read 2 more answers
1. Determine the magnitude of the resultant force acting on the plate and its direction, measured counter-clockwise from the pos
AlexFokin [52]
F1 . . . 100% of it = 900N is in the +x direction.

F2 . . . 70.7% of it (cos45°, 530.3N) is in the +x direction,
and 70.7% of it (sin45°, 530.3N) is in the +y direction.

F3 . . . 80% of it (520N) is in the -x direction,
and 60% of it (390N) is in the +y direction.

Total x-component:  900 + 530.3 - 520  =  1,950.3 N

Total y-component:  530.3 + 390  =  920.3 N

Magnitude of the resultant = √ (x²  +  y²)

                                       = √(1950.3²  +  920.3²)

                                       =  √4,650,070.09

                                       =   2,156.4 N  .

Angle of the resultant, measured counterclockwise
from the +x axis, is 
 
                               tan⁻¹  (y / x)

                         =    tan⁻¹  (920.3 / 1950.3)

                         =    tan⁻¹  (0.4719)

                         =    about    25.3°  .

Caution:
The same fatigue that degrades my ability to READ the question accurately
may also compromise the accuracy of my solutions.  Before you use this
answer for anything, check it, check it, check it !

 
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4 years ago
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Y=3x+1 should be the answer can I get a crown?
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