What percent of 250 is 50<br><br><br> 20%

In a survey of randomly selected 3,900 family-owned businesses with revenues exceeding $1 million a year, it was found that 1,91

Maurinko [17]

Answer:

a) The 90% confidence interval to estimate the proportion of family-owned businesses without strategic business plans is (0.4768, 0.5032). This means that we are 90% sure that the true proportion of all family-owned businesses without strategic business plans is between these two values.

b) Wider

Step-by-step explanation:

Question a:

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 z-score that has a p-value of $1 - \frac{\alpha}{2}$ .

In a survey of randomly selected 3,900 family-owned businesses with revenues exceeding $1 million a year, it was found that 1,911 of them had no strategic business plan.

This means that $n = 3900, \pi = \frac{1911}{3900} = 0.49$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a p-value of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.49 - 1.645\sqrt{\frac{0.49*0.51}{3900}} = 0.4768$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.49 + 1.645\sqrt{\frac{0.49*0.51}{3900}} = 0.5032$

The 90% confidence interval to estimate the proportion of family-owned businesses without strategic business plans is (0.4768, 0.5032). This means that we are 90% sure that the true proportion of all family-owned businesses without strategic business plans is between these two values.

Question b:

The margin of error is:

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

The higher the confidence level, the higher the value of z, thus the higher the margin of error and the interval is wider. Thus, a 99% confidence interval is wider than a 90% confidence interval.

3 0

2 years ago

A number from 1 to 100, inclusive, is selected at random. What is the probability that the

Gala2k [10]

Answer:i might be wrong but i believe its b

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

70 points!

astra-53 [7]

y = 4.5x

Explanation:

9 ÷ 2 = 4.5

18 ÷ 4 = 4.5

27 ÷ 6 = 4.5

3 0

3 years ago

Option B: More accurate and efficient financial reporting (such as a reduction in human errors and increased productivity).

djverab [1.8K]

As the owner of a medium to a large company, new technologies such as AI can be used to support daily operations because of <u>Option B.</u> More accurate and efficient financial reporting (such as a reduction in human errors and increased productivity).

<h3>What is AI (Artificial Intelligence)?</h3>

Artificial intelligence (AI) is an algorithm that gives a robot or computer the ability to undertake tasks normally done by human beings.

The tasks were previously required human intelligence and discernment but can now be handled by a robot or a computer.

<h3>Question Completion:</h3>

Artificial Intelligence (AI) is not a new phenomenon, but it is still a growing concern for many industries. While the human element remains the most important factor in most businesses, the accounting industry is not exempt from the threat of new technologies. If you were the owner of a medium to a large company, how could you use new technologies such as AI to support your daily operations? Select and discuss one of the options below.

<h3>Answer Options:</h3>

Option A: Cost savings associated with payroll and other personnel costs (i.e. training and development, employee hiring)

Option B: More accurate and efficient financial reporting (i.e. reduction in human errors, increased productivity)

Thus, AI enables accurate and efficient financial reporting with increased productivity.

Learn more artificial intelligence at brainly.com/question/25523571

6 0

2 years ago

[tex]\sqrt{49} <br> please answer correctly

Nookie1986 [14]

Answer:

Um.. well I don't know what is your question, but I think you meant square root and the answer is 7 because it is a perfect square.

Step-by-step explanation:

7 0

2 years ago

What percent of 250 is 50 20%