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3 years ago

Pls help me with this

Mathematics

1 answer:

Vladimir79 [104]3 years ago

3 0

The answer is d yes

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A consumer electronics company is comparing the brightness of two different types of picture tubes for use in its television set

puteri [66]

Answer:

The answer is "0.7794".

Step-by-step explanation:

Please find the complete question in the attached file.

Given:

$\to n_{1}=n_{2}=25\\\\$

Hypotheses:

$\to H_{0}:\mu_{B}-\mu_{A}\geq 0\\\\\to H_{a}:\mu_{B}-\mu_{A}< 0\\\\$

Testing statistics:

$\to z=\frac{(\bar{x}_{B}-\bar{x}_{A})-(\mu_{B}-\mu_{A})}{\sqrt{\frac{\sigma^{2}_{B}}{n_{1}}+\frac{\sigma^{2}_{A}}{n_{2}}}}=\frac{3.5-(0)}{\sqrt{\frac{16^{2}}{25}+\frac{16^{2}}{25}}}=0.77$

The test is done just so the p-value of a test is

$\to p-value = P(z < 0.77) = 0.7794$

Because the p-value of the management is large, type B can take it.

5 0

3 years ago

Yesterday, Anna drank 2/6 of a gallon of milk. Then her sister drank some milk and now there is only 3/12 of the gallon left. Ho

Airida [17]

Answer:

5/12

Step-by-step explanation:

Change the denominator of 6 to 12.

2 x 2 = 4

6 x 2 = 12

Find out how much gallon of milk was drank.

12/12 - 3/12 = 9/12

Find out how much the milk was drank after deducting how much Anna drank.

9/12 - 4/12 = 5/12

3 0

3 years ago

Can anyone please help me solve it<br>11,12 (1)(2)(3),13 this is all

kondor19780726 [428]

Answer:

answer of 11

Step-by-step explanation:

given A=30°

R.H.S=2sinA cosA

=2 * sin30° * cos30°

$2 \times \frac{1}{2} \times \frac{ \sqrt{3} }{2}$

$= \frac{ \sqrt{3} }{2}$

=sin60°

sin 2*30°

=sin2A

L.H.S=R.H.S

8 0

3 years ago

Mr. Davis bought solar lights for a pathway at his house. The lights cost $29.95 each and have an

vlabodo [156]

He pays $223.65.

This is because from the equation you know that he pays 29.95+2.00 for one light therefore, if we use x to represent the amount of lights--

X(29.95+2.00)

is an equation you can use to solve for the amount Mr. Davis payed for his lights.

3 0

3 years ago

F=P(1+r)^t solve for p

icang [17]

Answer:

the answer is P= F/(1+r)^t

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

4 0

3 years ago