Tiya used a probability simulator to roll a 12-sided number cube 100 times. Her results are shown in the table below:

Let μ denote the true average radioactivity level(picocuries per liter). The value 5 pCi/L is considered thedividing line betwee

VMariaS [17]

Answer:

H0: μ = 5 versus Ha: μ < 5.

Step-by-step explanation:

Given:

μ = true average radioactivity level(picocuries per liter)

5 pCi/L = dividing line between safe and unsafe water

The recommended test here is to test the null hypothesis, H0: μ = 5 against the alternative hypothesis Ha: μ < 5.

A type I error, is an error where the null hypothesis, H0 is rejected when it is true.

We know type I error can be controlled, so safer option which is to test H0: μ = 5 vs Ha: μ < 5 is recommended.

Here, a type I error involves declaring the water is safe when it is not safe. A test which ensures that this error is highly unlikely is desirable because this is a very serious error. We prefer that the most serious error be a type I error because it can be explicitly controlled.

7 0

3 years ago

The Kuroshio Sea tank is 27m long, 35m wide and 10m deep. What is the volume of the tank? Show your

umka21 [38]

The volume of Kuroshio Sea rank is 9450 cubic meters, if the sea tank is 27m long, 35m wide and 10m deep.

Step-by-step explanation:

The given is,

Kuroshio Sea tank is 27m long, 35m wide and 10m deep.

Step:1

Sea tank looks like a rectangular prism,

Formula to calculate the volume of rectangular prism,

$Volume, V =whl$ .............................(1)

Where, w - Width of the rectangular prism

h - Height or depth of the rectangular prism

l - Length of the rectangular prism

From given,

w = 35 meters

l = 27 meters

h = 10 meters

Equation (1) becomes,

$V = (35)(10)(27)$

$= (945)(10)$

$=9450$

Volume of the sea tank, V = 9450 Cubic meters

Result:

The volume of Kuroshio Sea rank is 9450 cubic meters, if the sea tank is 27m long, 35m wide and 10m deep.

3 0

4 years ago

The price s of a pair of shoes plus 5% sales tax

zzz [600]

An expression for that would be s + 0.05s, or 1.05s.

3 0

3 years ago

The area of the hexagon is 24a2 – 18 square units. Which is an equivalent expression for the area of the hexagon based on the ar

Tresset [83]

The area of the hexagon 24a² -18 is equivalent to 6(4a² -3).

Option A is the correct answer.

<h3>What is a Hexagon ?</h3>

A polygon with 6 sides is called a Hexagon.

The area of a hexagon is equal to area of 6 equilateral triangles.

The area of hexagon is given as

24a² -18

6(4a² -3)

Therefore the area of the hexagon 24a² -18 is equivalent to 6(4a² -3).

Option A is the correct answer.

To know more about Hexagon

brainly.com/question/3295271

#SPJ1

3 0

2 years ago

Krutika was thinking of a number. Krutika halves the number and gets an answer of 86. Form an equation with x from the informati

ddd [48]

X divided by 2=86

X=172

8 0

3 years ago