On a standardized science test, the seniors at Fillmore High School have a mean score of 430 with a standard deviation of 90.For random samples of 100 seniors, what interval centered on the mean of the sampling distribution captures 68% of the mean scores? If necessary, round to the nearest tenth. Enter the interval from least to greatest.

For random samples of 100 seniors, 68% of the sample means fall between __ and _

Answers

Answer 1

Answer:

Answer:

For random samples of 100 seniors, 68% of the sample means fall between 340 and 520

Step-by-step explanation:

As a property of normal distribution, 68% of sample means fall between mean - sigma(430 - 90 = 340) and mean + sigma (430 + 90 = 520) (here, sigma is standard deviation).

Hope this helps!

Related Questions

(b-1)2+2a; use a=6, and b=1
toothbrush 95g toiletries 1.4kg shoes 3 1/8 kg beach towel 0.6kg clothes 8580g what's the total weight
What's perpendicular to: y= x-1 And y= -1/3x -1
Tom is twice as old as Mary, but he is 2 years younger than Jim. What is Mary's age if Jim will be twenty years old in 2 years time?
at a concert, the number of security guards needed is based on the average density of people in an area of 25' x 25'called a block. The concert space measures 350' by 200'. The number of security guards is based on a number of blocks necessary and each security guard can only be responsible for one block. 12,000 people are expected to attend the concert. How many security guards will be needed? How many people, rounded to the nearest 10, will be in each block?

Which transformations will produce similar, but not congruent, figures?Choose all answers that are correct.

A.

Square ABCD is rotated 270° clockwise and then dilated by a scale factor of 1/3 to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.

B.

Square ABCD is reflected across the x-axis and then dilated by a scale factor of 2 to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.

C.

Square ABCD is dilated by a scale factor of 4/5 and then translated 1 unit right to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.

D.

Square ABCD is translated 8 units right and 8 units up and then reflected across the y-axis to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.

Answers

Which transformations will produce similar, but not congruent, figures?
Square ABCD is rotated 270° clockwise and then dilated by a scale factor of 1/3 to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.
Square ABCD is dilated by a scale factor of 4/5 and then translated 1 unit right to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.
Square ABCD is translated 8 units right and 8 units up and then reflected across the y-axis to form square AꞌꞌBꞌꞌCꞌꞌDꞌꞌ.
The answers are letters A, C and D

How do I solve x/3 - x/2 =12 they are fractions I dont know ro write on on a laptop

Answers

Multiply by 6 on both sides

6(x/3 - x/2) = 12(6)
2x - 3x = 72
-x = 72
x = -72

Hope that helped :)

A camp ground consists of 12 square campsites arranged in a line along a beach. The distance from the edge of a campsite to the water at the end of the beach is 5 yards. The area of the campground, including the beach, is 1,248 square yards. What is the width of one campsite/

Answers

x=side length of a campsite
12x(5+x)=1248 because each campsite has a length of x and there are 12 and from the top of the camp to the water is the 5 yds + a side length and LW=1248
60x+12x^2=1248
12x^2+60x-1248=0
x^2+5-14=0
(x+7)(x-2)=0
x+7=0 or x-2=0
x=-7 or x=2
x=2 because width can't be negative
the width of one campsite is 2 yds

What is the square root of ab^2

Answers

Answer:

$b\sqrt a$

Step-by-step explanation:

We have to simplify the expression $√(ab^2)$

We can use the rules:

$√(xy)=\sqrt x\cdot\sqrt y...(i)\n\n√(x^2)=x...(ii)$

Using the rule (i), we can rewrite the expression as

$√(ab^2)\n\n=\sqrt a\cdot√(b^2)$

Now, using the rule (ii), we have

$\sqrt a\cdot√(b^2)\n\n=\sqrt a\cdot b\n\nb\sqrt a$

The simplified form is $b\sqrt a$

$√(ab^2) = b√(a)$

A salesperson is paid a base salary of $300 a week plus a 5% commission on the sales he generates. Which inequality best represents s, the amount of sales in dollars he must generate to earn at least $500 for the week?

Answers

The expression can be written as the inequality:

300+0.05s≥500

300$ is made per week, so we start off with

300

He also makes 5% or 0.05 from his sales, so we add in the expression 0.05x (where s is equal to his sales volume for the week)

300+0.05s

If he wants to make at least 500$ weekly, then the total of the base salary plus the commission has to be 'greater than or equal to 500.

300+0.05s≥500

Lets solve for s now...

300+0.05s≥500
subtract 300 from both sides
0.05s≥200
Divide both sides by 0.05
s≥4000

Answer:

Answer is C

Step-by-step explanation:

Your welcome

Which fraction is equivalent to 68%

Answers

68/100 but if you want it simplified it would be 17/25

68 over 100
or 0.68
but it depends on what yu talking about

Other Questions

B The veterinarian weighs Anthony'sdog at a check up. The dog weighs 55 pounds. If 1 kilogram is approximately 2.2 pounds, which value best represents the weight of Anthony's dog in kilograms?

1089141°Next QuestionCheck Answer

Which three-dimensional figure has exactly three rectangular faces? rectangular prism rectangular pyramidtriangular prism triangular pyramid

A parachutist falls at a speed of about 12 miles per hour. Find this speed in feet per second