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shtirl [24]
3 years ago
14

A company wishes to test LaTeX: H_0 H 0 : LaTeX: p=0.75 p = 0.75 against LaTeX: H_a H a : LaTeX: p\ne0.75 p ? 0.75 , where LaTeX

: p p refers to the unknown proportion of skilled workers in the company. Given the sample data, the p-value for this test is found to be 0.0251. What conclusion can be made about the test? (a) Accept the null hypothesis at 3% level of significance. (b) Reject the null hypothesis at 3% level of significance.
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

B

Step-by-step explanation:

The p-value 0.0251 is less than the significance level 0.03, so the null hypothesis is rejected

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A box contains 14 large marbles and 11 small marbles. Each marble is either green or white. 8 of the large marbles are green, an
prisoha [69]

Answer:

Step-by-step explanation:

Given that:

Number of Large Marbles = 14

Number of Small Marbles = 11

Number of Green large marbles = 8

Number of White small marbles = 5

We can now find the number of white large marbles and green small marbles from the information stated above.

No of white large marble = total large marble minus green large marble

= 14-8

= 6

No of green small marbles = Total small marbles minus white small marble.

= 11-5

= 6

Let the following be represented

( X,Y, Z,Q ) as follows:

Let Y be the event of drawing small marble

Let X be the event of drawing large marble

Let Q be the event of drawing white marble

Let Z be the event of drawing green marble.

Since, only one marble is drawn at a time we calculate,

P( X ) = 14/25

P( Y) = 11/25

P(Z) = 14/25

P( Q) = 11/25

P(Y∪Q)=P(Y)+P(Z)−P(Y∩Z)...(1)

We need to find the value of

P(Y∩Z)

In 11 small marbles there are 6 green marbles so the value of P(Y∩Z) is given by P(Y∩Z)=6/11

Therefore, substitute the values in equation 1.

P(Y∪Z)=P(Y)+P(Z)−P(Y∩Z)=11/25+14/25-

6/11

=0.44+0.56−0.5455

= 1-0.5455

= 909/2000

= 0.4545

Then, one can conclude that the probability of drawing a small or green marble is 0.4545

4 0
3 years ago
Can someone please help me with this?
lutik1710 [3]

Answer:

(-78/29, -619/29)

Step-by-step explanation:

Since both equations are equal to y we can set them equal to each other

15x+19 = 1/2x - 20

Subtract 1/2x from each side

15x -1/2x +19 = -20

Subtract 19 from each side

14 1/2 x +19-19 = -20-19

Changing to an improper fraction

29/2 x = -38

Multiply each side by 2/29

x = 2/29 * -38

x = -78/29

Now find y

y = 1/2x - 20

y = 1/2 (-78/29) -20

y = -39/29 - 20

Get a common denominator

 =-39/20 - 580/29

 = -619/29

  -39/29 -580/29

8 0
3 years ago
Answer pleaseeeeeeeeee
yKpoI14uk [10]

Answer:

(g+5)²(g-3)

Step-by-step explanation:

we just need the denominator so we can ignore everything on top

with that in mind mulitply the denominators to find the LCD

(g²+2g-15)(g+5)=g³+7g²-5g-75

Factor this (i used synethic divison, can explain if needed)

(g+5)²(g-3)

5 0
3 years ago
Upon what does the force of gravity between two objects depend? The amount of attraction between the two objects A
soldier1979 [14.2K]

Answer: D

Step-by-step explanation: i did the exam.

7 0
3 years ago
Jason rolls the die 14 times. What is the experimental probability that he will roll a 2
Vaselesa [24]
There’s 14 rolls. The probability he lands on a 2 would be 2/14. Once you simplify it it would give you a probability of 1/7
5 0
3 years ago
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