A 7,000-seat theater is interested in determining whether there is a difference in attendance between shows on Tuesday evening and those on Wednesday evening. Two independent samples of 25 weeks are collected for Tuesday and Wednesday. The mean attendance on Tuesday evening is calculated as 5,500, while the mean attendance on Wednesday evening is calculated as 5,850. The known population standard deviation for attendance on Tuesday evening is 550 and the known population standard deviation for attendance on Wednesday evening is 445. Which of the following is the value of the appropriate test statistic?A. z = -2.4736B. z = 2.4736C. tdf=−2.4736D. td f=2.4736

Answers

Answer 1

Answer:

A. z = -2.4736

Step-by-step explanation:

n1 = 25

n2 = 25

x1 = 5500

x2 = 5850

Sd1= 550

Sd2 = 445

Null hypothesis

μ1 - μ2 = 0

Alternate

μ1 - μ2 != 0

Pooled variance = ((25-1)*550²)+((25-1)*445²)/25+25-2

= 7260000+4752600/48

= 250262.5

Pooled sd = √250262.5

= 500.26243

Test statistic

Z =

5500-5850+10/500.26243*√1/25+1/25

= -2.47357 approximately

-2.4736

A 7,000-seat Theater Is Interested In Determining Whether There Is A Difference In Attendance Between
A 7,000-seat Theater Is Interested In Determining Whether There Is A Difference In Attendance Between

Related Questions

El lado de un rectángulo mide el tiple de su ancho, si el perímetro mide 96 cm ¿cuáles son sus dimensiones?

Answers

Answer:

Ancho 12 cm,  Largo 36 cm

Step-by-step explanation:

lamamos al ancho X y por tanto el largo será 3X

Como el perímetro es la suma de los 4 lados, tenemos la siguiente igualdad:

3X+3X+X+X=96 cm

8X=96 cm

X=96 cm/8

X=12 cm

El ancho mide 12 cm

Si el largo es el triple, entonces 3 x 12 = 36 cm

Which number when rounded to the nearest hundredth is 37.62?

A. 37.612
B. 37.618
C. 37.627
D. 37.626

Answers

Answer:

Letter B. 36.618

Step-by-step explanation:

6 is the tenth 1 is the hundredth, so look at the next number (8/thousandth) and of its 5 or more raise the score, 4 or less let it rest, 8 is 5 or higher so you then remove the 8 and raise the 1 in hundreths place to a 2

Find the value of x.
(7x + 16)
80°
The value of x is

Answers

i plugged it into conects & it told me this, hope it helps

IDK WHY IT SAYS IM A COLLEGE PERSON IM NOT BUT UM I NEED HELP WITH THIS PLEASEEEEEE

Answers

Answer:

option 3

Step-by-step explanation:

Answer:

it's option 3 i think

Step-by-step explanation:

Selecting a State Choose one of the 50 states at
random.
a. What is the probability that it begins with M?
b. What is the probability that it doesn't begin with a
vowel?

Answers

Answer:

PART ONE- 8/50 PART 2-38/50

Step-by-step explanation:

First of all, we know that there are 50 states. Lets see how many states begins with M first.

Maine‎ (27 C, 5 P)

Maryland‎ (28 C, 5 P)

Massachusetts‎ (29 C, 4 P)

Michigan‎ (28 C, 4 P)

Minnesota‎ (28 C, 2 P)

Mississippi‎ (27 C, 6 P)

Missouri‎ (25 C, 3 P)

Montana‎ (27 C, 6 P)

There are 8 states which means that the probabilty is 8/50 which simplifies to 4/25

We know that 12 states begins with a vowel. 50-12 is 38/50

The probability that it begins with M is 0.16 and the probability that it doesn't begin with a vowel is 0.76

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur.

Given that, Selecting a State, Choose one of the 50 states at random.

We know that, P(A) = n(A)/n(S)

where, P(A) is the probability of an event “A” n(A) is the number of favourable outcomes. n(S) is the total number of events in the sample space.

a) There are 8 states which begins with M, that means the probability = 8/50 = 4/25 = 0.16

b) We know that 12 states begins with a vowel,

Therefore, the probability that it doesn't begin with a vowel = 1 - 12/50 = 38/50 = 0.76

Hence, The probability that it begins with M is 0.16 and the probability that it doesn't begin with a vowel is 0.76

For more references on probability, click;

https://brainly.com/question/30029248

#SPJ2

Ashmit purchased a PS4 which is marked at Dhs.1600 and discounted at 10%. How much did he pay for the PS4?

Answers

Answer:

the %of the 1000 is 100

and the %of the 600 is 60

now add them together =160

now the whole amount is 1600-160=1440 i believe that is the good answer

so sorry if some thing wrong

Consider the sequence of steps to solve the equation:
X-3
—— = x +3
3

Step 1 = X-3 = 3(x + 3)
Step 2 = X-3 - 3x + 9
Step 3 = x= 3x + 12
Step 4 = -2x = 12
Step 5 = x= -6
Identify the property of equality which yields Step 1.
A)
Division Property
B)
Addition Property
C)
Subtraction Property
D)
Multiplication Property

Answers

D. Multiplication Property

(8x^3+4x^2+x)-(2x^3+x^2+x)

Answers

Answer:

6x^3+5x^2+2x

Step-by-step explanation:

Pls help i dont understand :( will give Brainliest + 25 Points

Answers

well,

2/3x is the slope, and b is the y-intercept, y is the y coordinate

it can only be one of the last 2

It is the LAST one

x=6

y=-5

-5 = 2/3(6)-9

-5 = 4-9

-5 = -5

the answer is the last one

Answer:

Step-by-step explanation:

part d

y=2/3x-9

does this graph represent a function?Hint: use vertical line test.

Answers

Yes it does just use your pencil or finger and go across it left to right

Which comparison is NOT true?
F 3.375 > 3.275
G 6.875 < 6.9
H 2.65 > 2.675
J 7.675 < 7.75

Answers

Answer:

H is NOT True.

Step-by-step explanation:

5 is not greater than 7.

Answer:

no 3 is the answer

Step-by-step explanation:

iam not sure

Which angles are corresponding angles?

Picture in the question, please help on test that’s due soon!

Answers

Answer:

8 and 16

Step-by-step explanation:

Answer:

I have 8 and 16

What is the slope intercept form for this?
Slope= -1 Y intercept= 8

Answers

Answer:

y= -x+8

Step-by-step explanation:

y=m+b Replaced M with -1 which will be -x.

y= -x+b Then replace the b with 8.

y= -x+8  

You do -x because its the same as -1.

Answer:

y = -x + 8

Step-by-step explanation:

Hi there!

We are given that the slope of a line is -1 and the y intercept of that same line is 8

We want to find the equation in slope-intercept form

Slope-intercept form can be written as y=mx+b, where m is the slope and b is the y intercept

As we are already given the values of the slope and the y intercept, we can simply substitute these values into the formula to find the equation.

First, substitute -1 as m in the equation:
y=-x+b (when 1 is the coefficient, you don't need to write '1' in front of a variable; when -1 is the coefficient, putting only a - sign will suffice)

Now substitute 8 as b in the equation

y = -x + 8

Hope this helps!

See more on this topic here: https://brainly.com/question/27187813

what is thales theory ?​

Answers

Answer:

Thales's theory about the cause of earthquakes is consistent with his hypothesis that earth floats upon water. It seems that he applied his floating on water simile to the natural phenomena of earthquakes. Aëtius recorded that Thales and Democritus found in water the cause of earthquakes

who helps me do this

Answers

Answer:

1. True

2. false.

3. true

4. false

5. true

6x^2-18x-18=6
CAN SOMEONE EXPLAIN PLS

Answers

Simplifying
6x2 + -18x + -18 = 6

Reorder the terms:
-18 + -18x + 6x2 = 6

Solving
-18 + -18x + 6x2 = 6

Solving for variable 'x'.

Reorder the terms:
-18 + -6 + -18x + 6x2 = 6 + -6

Combine like terms: -18 + -6 = -24
-24 + -18x + 6x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-24 + -18x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-4 + -3x + x2) = 0

Factor a trinomial.
6((-1 + -1x)(4 + -1x)) = 0
6(x^2-3x-3)=6
X^2-3x-3=1
X^2-3x-4=0
(X-4)(x+1)=0
X=4 x=-1

seven children the School bus yo school some more children. walked to school there are 13. children ay. school how many. children. walked to school?​

Answers

Answer: 6 kids walked to school

Step-by-step explanation:

Since there are 13 kids altogether and 7 rode the bus, it can be solved using subtraction.

13 - 7 = 6

Simplify -√36 please

Answers

Answer:

-6

Step-by-step explanation:

djhcjici4n c rncinr

for the question the answer will be -6

what happens when you celebrate halloween in spring matrix multipication

Answers

Answer:

his is the day that immediately proceeds the last and final spring sabbat, ... The fact that Beltane and Samhain happen in unison twice a year lends ... You know all those Halloween recipes you've been saving on Pinterest for years now? ... Halloween and Samhain product brands as you can all year long.

Step-by-step explanation:

write an equation to solve for x. what is the value of x none of this makes any sense to me at all so if y'all get it right amen will mark brainiest this is so hard ty so much​

Answers

Answer:

equation: 3x - 2 + 4x - 9 + 3x - 9 = 180 x = 20

Step-by-step explanation:

add all internal angles

∠H + ∠I + ∠J = 180

equation: 3x - 2 + 4x - 9 + 3x - 9 = 180

combine similar terms: 3x + 3x + 4x = 180 + 2 + 9 + 9

simplify: 10x = 200

divide 10 both sides: x = 20

X=20 I hope this helps

An investment of $9,875 earns 4.8% interest

Answers

Answer:

474$

Step-by-step explanation:

To determine the temperature in Fahrenheit, multiply the Celsius temperature by 1.8 then add 32. Determine the Celsius temperature if it is 89°F outside. Round your answer to the nearest hundredth.

Answers

Answer: 31.67 C

Step-by-step explanation:

89 = 1.8c +32

57=1.8c

c=31.6666667 or 31.67

Kate has a negative bank account balance of $100. If she is depositing $5 a day , how long until she has a negative balance of only $30?​

Answers

Answer:

14 days

Step-by-step explanation:

-100 +5+5+5+5+5+5+5+5+5+5+5+5+5+5= -30

is math hard or easy. comment your answer

Answers

math is hard, but sometimes it can be easy

Answer:

a little bit of bth

Step-by-step explanation:

4
Solve the following equation: *
3x + 7 = 5x - 15
Enter your math answer
5
Solve the following equation: *
3(2x - 5) = 9x + 24
Enter your math answer

Answers

Answer:

4. x = 11

5. x = -13

Step-by-step explanation:

4.   3x + 7 = 5x - 15

           -7           -7

3x = 5x - 22

-5x   -5x

-2x = -22

-2x/-2 = -22/-2

x = 11

5. 3(2x - 5) = 9x + 24

6x - 15 = 9x + 24

    +15          +15

6x = 9x + 39

-9x   -9x

-3x = 39

-3x/-3 = 39/-3

x = -13

Hope this helps, have a great day:)

Which of the following is not a property of atoms?
A. All atoms of the same element are identical
B.Atoms have the ability to vibrate and move
C.Atoms have at least two electrons
D.Atoms have three different subatomic particles

Answers

Answer:

A. All atoms of the same elements are identical

Step-by-step explanation:

Two atoms of the same chemical element are typically not identical. They can be different if their electrons are in different states,

The answer is a all atoms of the same element are identical

If (X-Y,X+Y )= (6,10 ) , find x and y!!

Answers

Answer:

Step-by-step explanation:

adding both,

x-y=6 ------------------(1)

x+y=10 -------------------------(2)

Cutting y, we get

2x=16

∴x=8

Eq. in (2)

y=10-8

 =2

Pls mark me brainliest


When she first purchased it, Soledad's computer had 500 GB of hard drive space. After six months, there
were only 407 GB available. Enter and solve an equation to find the amount of hard drive space that
Soledad used in the first six months. Uses as your variable.
- 500
The equation is
She has used
GB of memory

Answers

Answer:

I think 500-407=93

In the picture lines AB and CD are parallel. Find the measures of
the following angles. Explain your reasoning.
F
E
D
В.
38 A.
1. BCD
2. ZECF
3. ZDCF

Answers

Answer/Step-by-step explanation:

1. <ABC and <BCD are alternate interior angles. Alternate interior angles are equal, therefore, since m<ABC = 38°, then m<BCD = 38°

2. m<ECF = m<BCD (corresponding angles)

m<ECF = 38° (substitution)

3. m<DCF + m<ECF = 180° (linear pair)

m<DCF + 38° = 180° (substitution)

m<DCF = 180° - 38° (Subtraction property of equality)

m<DCF = 142°

3/4 (x + 18) = 15 What is x equal to

Answers

Answer:

x=2

Step-by-step explanation:

hope it helps

please mark as Brainliest

Answer:

x = 2

Step-by-step explanation:

For me it's easier to work with decimals than fractions, so I converted 3/4 to .75

.75(x + 18) = 15

.75x + 13.5 = 15  

That was just distributing the .75 but here is where it gets a bit confusing.

.75x + 13.5 = 15

       -13.5     -13.5

.75x = 1.5

Divide both sides by .75 to isolate the variable.

x = 2

Hope that helps and have a great day!

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