1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastasy [175]
3 years ago
8

What is greater than 786.2 and less than 786.3 as a decimal

Mathematics
2 answers:
Nadya [2.5K]3 years ago
5 0

Answer:

786.25

Step-by-step explanation:

Really anything between 786.21 to 786.29

alekssr [168]3 years ago
3 0

Answer:

My guess would be 786.25 since its true :)

You might be interested in
An SRS of 350 high school seniors gained an average of x¯=21 points in their second attempt at the SAT Mathematics exam. Assume
Lynna [10]

Answer:

a) 21-2.58\frac{52}{\sqrt{350}}=13.83  

21+2.58\frac{52}{\sqrt{350}}=28.17  

So on this case the 99% confidence interval would be given by (13.83;28.17)  

b) ME=2.58\frac{52}{\sqrt{350}}=7.17

c) ME=2.58\frac{52}{\sqrt{100}}=13.42

d) D. Decreasing the sample size increases the margin of error, provided the confidence level and population standard deviation remain the same.

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

Part a

\bar X=21 represent the sample mean  

\mu population mean (variable of interest)  

\sigma=52 represent the population standard deviation  

n=350 represent the sample size  

99% confidence interval  

The confidence interval for the mean is given by the following formula:  

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}} (1)  

Since the Confidence is 0.99 or 99%, the value of \alpha=0.01 and \alpha/2 =0.005, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.005,0,1)".And we see that z_{\alpha/2}=2.58  

Now we have everything in order to replace into formula (1):  

21-2.58\frac{52}{\sqrt{350}}=13.83  

21+2.58\frac{52}{\sqrt{350}}=28.17  

So on this case the 99% confidence interval would be given by (13.83;28.17)  

Part b

The margin of error is given by:

ME=2.58\frac{52}{\sqrt{350}}=7.17

Part c

The margin of error is given by:

ME=2.58\frac{52}{\sqrt{100}}=13.42

Part d

As we can see when we reduce the sample size we increase the margin of error so the best option for this case is:

D. Decreasing the sample size increases the margin of error, provided the confidence level and population standard deviation remain the same.

6 0
3 years ago
How do i make this fraction (7/3) a mixed number?
uranmaximum [27]

You get the whole numbers (1's) out of it and show the left over fraction next to it. (e.g. there is 7/3 as a mixed number is 2 1/3 )

7 0
3 years ago
A softball team is ordering pizza to eat after their tournament. They plan to order cheese pizzas that cost $6 each and four-top
Softa [21]

Answer:

46

Step-by-step explanation:

Well $1o each than 10×4=40 and 40 +6=46

7 0
3 years ago
Read 2 more answers
Please help!!! I’ll mark you the Brainlyest!!
Tatiana [17]

Answer: C.

Step-by-step explanation:

i hope this helpes!!

3 0
3 years ago
Read 2 more answers
What is the area, in square inches, of the rectangle below?
chubhunter [2.5K]
The answer would be D i believe
6 0
2 years ago
Other questions:
  • Javier is 175% heavier than his brother. If Javier's brother weighs 80 pounds, how much does Javier weigh?
    13·2 answers
  • Use the distributive property to simplify the expression.
    12·1 answer
  • Colby has 16 jar of spices.He wants to arrange them in arrays. What arrays could be used to arrange them?
    6·1 answer
  • Caleb's goal is to find a job that provides an income of at least $70,000 a year. Vanessa's Furniture offers him a job paying a
    9·1 answer
  • ? + (-7) = 3 Please answer soon
    10·1 answer
  • The dot plot shows the number of hours each week that students in after-school sports spent at practice. Which describes the spr
    12·2 answers
  • Algebra Martin has 12 times as many baseball
    12·1 answer
  • Can you please help me??
    13·1 answer
  • 2.6432 rounded to the nearest tenth
    11·2 answers
  • Anna divided a sheet of paper into 5 equal sections and colored 3 sections blue . What percent is that and it =60
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!