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
Grace [21]
3 years ago
12

A recent survey of 8,000 high school students found that the mean price of a prom dress was $195.00 with a standard deviation of

$12.00. Alyssa thinks that her school is more fashion conscious and spent more than $195.00. She collected data from 20 people in her high school and found that the average price spent on a prom dress was $208.00. Which of the following is the correct z-statistic for this situation?
Mathematics
2 answers:
Sloan [31]3 years ago
6 0

Answer:

4.84

Step-by-step explanation:

got it right on edge2020

cluponka [151]3 years ago
4 0
The z-statistic can be calculated as the difference in the population mean and sample mean divided by the standard error. The standard error can be calculated as the standard deviation divided by square root of sample size. The standard error: SE = 12/ sqrt(20) = 2.68 The z-statistic: (195 -208) 2.68 = -4.86
You might be interested in
I really need help with these questions, 5 STARS AND BRAINLIEST FOR WHOEVER HAS THE BEET ANSWER!!
zvonat [6]
1) y=(7/2)x-2.
Slope is the coefficient of x, that is 7/2

Intercept x is the value of x when y = 0 ==> 0=(7/2) X - 2==> 7/2x=2 &x=4/7
so intercept  x, (4/7,0)

Intercept y is the value of y when x=0 ==> y= (7/2).(0) - 2 ==> y = 2 
and so intercept  y, (0,-2)

Now you will follow the same logic to find the are same questions

2) y= -6x + 3 ==>Slope= -6, Intercept x =1/2 & intercept y=3

3) y=-5 has a slope 0 (it doesn't exist). The graph is a line // to x-axis at y=-5

4)y=(6/5)x + 1:==>Slope= -5/6, Intercept x =-5/6 & intercept y=1

5) y=(1/4)x + 2 ==>Slope= 1/4, Intercept x =-8  & intercept y=2

6) x=5, this ligne is // to y axis at x=-5


 
5 0
3 years ago
You buy a house for $230,000. It appreciates at a rate
Xelga [282]

Answer:

1,232,142

Step-by-step explanation:

bro just use a calculator

3 0
2 years ago
5
m_a_m_a [10]

Answer:

question no proper plz give question in right way

5 0
2 years ago
Find the number of terms in this polynomial. -5h + 8​
Arisa [49]

Hi! I can help you with joy! :)

  • Let's find the number of terms in this polynomial.
  • The given polynomial has 2 terms:
  • -5h and 8
  • Polynomials with 2 terms are called "binomials"
  • Thus, -5h+8 has 2 terms.

<u>Answer:</u>

2 terms

Hope it helps!

\rm{Stargazing{\bold{WithJoy:D}

4 0
2 years ago
I need help please. The question is already there. Tysm. 20 points.
Bess [88]

Answer:

$109 and 35%

Step-by-step explanation:

49.05 is the sale price and the discount is 55%. What’s the original price?

price/ 1- discount

49.05/ 1 - 0.55

49.05/ 0.45

109

for the other part

to find the discount subtract final price from original price

94 - 61.10 = 32.9

Which would be 35% in percent form.

5 0
3 years ago
Other questions:
  • Pls help! will give brainlist!
    13·1 answer
  • What is the gcf of 16 20 and 24
    13·2 answers
  • Use an addition property to solve for c.
    14·2 answers
  • Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 80 and a standard deviation
    8·1 answer
  • The sum of 5 times the width of a rectangle and twice its length is 26 units. The difference of 15 times the width and three tim
    12·1 answer
  • PLEASE HELP ASAP!:<br><br> Solve for a and b<br> 6a-b=-5<br> 4a-3b = -8
    6·1 answer
  • Is 5/3 a terminal or repeating decimal
    8·2 answers
  • Honey's blueberry muffin recipe calls for 3 1/4 pounds of blueberries and 2 1/2 cups of muffin mix. How many cups of muffin mix
    13·1 answer
  • How do I write a expression for the sequence in the table? Answer fasts plzz
    8·1 answer
  • Which transformation carries the trapezoid onto itself?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!