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ipn [44]
3 years ago
6

A newsletter publisher believes that 64d% of their readers own a Rolls Royce. A testing firm believes this is inaccurate and per

forms a test to dispute the publisher's claim. After performing a test at the 0.020.02 level of significance, the testing firm decides to reject the null hypothesis. What is the conclusion regarding the publisher's claim
Mathematics
1 answer:
fgiga [73]3 years ago
6 0

Answer:

Step-by-step explanation:

The null hypothesis

H_o:p=0.64

The alternative hypothesis

H_1:p \neq 0.64

At 0.02 level of significance,

the testing firm rejects the null hypothesis.

This implies that the rejection of the null hypothesis shows that there is sufficient evidence to reject a newsletter publisher who believes that 64% of their readers own a Rolls Royce.

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Find the sum of the geometric sequence 3, 15, 75, 375, … when there are 9 terms and select the correct answer below.
jeka94

Answer:

  c.  1,464,843

Step-by-step explanation:

The sum of n terms of a geometric sequence with first term a1 and common ratio r is given by ...

  sn = a1(r^n -1)/(r -1)

Filling in the values a1=3, r=5, n=9, we get ...

  s9 = 3(5^9 -1)/(5 -1) = 1,464,843

3 0
4 years ago
William says that 15 yeas from now, his age will be 3 times his age 5 years ago. If x x represents William present age, complete
algol [13]

Answer:

I don't know what the following sentence is:

But D is the equation to represent the situation

and A is what turns out to be his current age.

(If you want more help, on this question please post the following sentence).

Step-by-step explanation:

Let x represent the current age.

15 years from now his age is 3 times his age 5 years ago means we have the equation:

x+15=3(x-5)

(I added x to 15 because we said 15 years in the future)

Let's solve this to see if makes any sense just for fun:

Distribute:

x+15=3x-15

Add 15 on both sides:

x+30=3x

Subtract x on both sides:

   30=2x

Divide both sides by 2:

   15=x

So this means his current age is 15.

5 years ago his age would have been 10.

15 years in the future his age will be 30.

Is 30 equal to 3 times 10? Yes, it is! The equation does make sense.

3 0
3 years ago
Read 2 more answers
Help please. I don't know how to do this.
tatyana61 [14]

Answer:

it is quite simple it's just that you need to substitute the input in place of x

eg:if the input is 2 then 2(3(2)+4) = 20 and 20 is the output

3 0
3 years ago
What is the quotient of<br> 8.5<br> ——-<br> -0.5<br><br> A. O -17<br> B.1.7<br> C.17<br> D. -1.7
NARA [144]

Answer:

the answer is A) -17

all you need to do is divide 8.5 ÷ -.5 to get -17

4 0
3 years ago
The graph shows the speed of sam’s car over time.
Flauer [41]

Answer:

The car is slowing down.

Step-by-step explanation:

The graph compares the speed of Sam's car to the time that has passed.  In section C, the graph is decreasing; this means the dependent variable, speed, is decreasing as the independent variable, time, is increasing.

His car is slowing down.

8 0
3 years ago
Read 2 more answers
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