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Grace [21]
4 years ago
12

Its okay if you dont know it, i just need help

Mathematics
2 answers:
TEA [102]4 years ago
8 0

Answer:

6 gallons every minute. I hope this helped

Step-by-step explanation:

Rama09 [41]4 years ago
3 0

Answer:

A shower uses 6 gallons of water a minute

Step-by-step explanation:

We can find this out by dividing the gallons used, by the minutes

36/6=6

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An insurance company estimates 45 percent of its claims have errors. The insurance company wants to estimate with 99 percent con
nydimaria [60]

Answer:

We need a sample size of at least 657.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

45 percent of its claims have errors.

So \pi = 0.45

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

What sample size is needed if they wish to be within 5 percent of the actual

This is a sample size of at least n, in which n is found when M = 0.05.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.05 = 2.575\sqrt{\frac{0.45*0.55}{n}}

0.05\sqrt{n} = 1.28

\sqrt{n} = \frac{1.28}{0.05}

\sqrt{n} = 25.62

\sqrt{n}^{2} = (25.62)^{2}

n = 656.4

We need a sample size of at least 657.

6 0
3 years ago
Write an that
lawyer [7]

Answer:

y = 25x

Step-by-step explanation:

Given

Rate = 25

Required

Cost of x pounds

To do this we simply multiply x by the rate

y =Rate * x

y = 25 * x

y = 25x

7 0
3 years ago
The radius of a circle is 6 yards. What is the circle's circumference? Use 3.14 for ​.
Orlov [11]

Answer:

18.84

Step-by-step explanation:

sorry if i get the wrong answer i literlly learn this but i complety forget it

5 0
3 years ago
Read 2 more answers
1/4d-3/4 factor out the coefficient
Liula [17]

Answer:

soorrry no

Step-by-step explanation:

6 0
3 years ago
What is 9 - 3 divided by 1/3 + 1 <br><br> (Marking brainlest also doing random problems)
Lisa [10]

Answer:

the answer is 1 if i read this right

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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