Answers
Answer: 3 then 0
Step-by-step explanation:
Related Questions
A researcher claims that the variation in the salaries of elementary school teachers is greater than the variation in the salaries of secondary school teachers (the claim). A random sample of 30 elementary school teachers has a variance of $ 8324, and a random sample of 30 secondary school teachers has a variance of $2862. At α= 0.05, can the researcher conclude that the variation in the elementary school teachers' Salaries is greater than the variation in the secondary teachers' salaries? Use the P-value method.
Assume that all variables are normally distributed.
a. State the hypotheses and identify the claim.
b. Find the critical value.
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Answers
Answer:
a
The null hypothesis is [tex]H_o : \sigma^2_1 = \sigma^2 _2[/tex]
The alternative hypothesis is [tex]H_a : \sigma_1 ^2 > \sigma^2_2[/tex]
b
[tex]F_{critical} = 1.8608[/tex]
c
[tex]F = 2.9085[/tex]
d
The decision rule is
Reject the null hypothesis
e
There is sufficient evidence to support the researchers claim
Step-by-step explanation:
From the question we are told that
The first sample size is [tex]n_1 = 30[/tex]
The sample variance for elementary school is [tex]s^2_1 = 8324[/tex]
The second sample size is [tex]n_2 = 30[/tex]
The sample variance for the secondary school is [tex]s^2_2 = 2862[/tex]
The significance level is [tex]\alpha = 0.05[/tex]
The null hypothesis is [tex]H_o : \sigma^2_1 = \sigma^2 _2[/tex]
The alternative hypothesis is [tex]H_a : \sigma_1 ^2 > \sigma^2_2[/tex]
Generally from the F statistics table the critical value of [tex]\alpha = 0.05[/tex] at first and second degree of freedom [tex]df_1 = n_1 - 1 = 30 - 1 = 29[/tex] and [tex]df_2 = n_2 - 1 = 30 - 1 = 29[/tex] is
[tex]F_{critical} = 1.8608[/tex]
Generally the test statistics is mathematically represented as
[tex]F = \frac{s_1^2 }{s_2^2}[/tex]
=> [tex]F = \frac{8324 }{2862}[/tex]
=> [tex]F = 2.9085[/tex]
Generally from the value obtained we see that [tex]F > F_{critical }[/tex] Hence
The decision rule is
Reject the null hypothesis
The conclusion is
There is sufficient evidence to support the researchers claim
Combine 2x^2+5x-6+8x
Answers
Part A and Part B for Max's car together cost $1,693 dollars, Part A cost $58 dollars
more than twice what Part B cost. How much did each part cost?
Answers
Answer:
Part A: 1148
Part B: 545
Step-by-step explanation:
Part A: 2x + 58
Part B: x
2x + 58 + x = 1693
3x + 58 = 1693
3x = 1635
x = 545
Part A: 2x + 58 = 2(545) + 58 = 1148
Part B: x = 545
Find the amount of interest to be paid.
Principal: $780
Annual Rate of Interest: 12 1/2%
Time: 6 months
Use the formula: i = prt (principal, rate, time)
Answers
Answer:
P = 780
R = 12 1/2%
T = 6
780 x 12 1/2% x 6 = $2808.005
what apple group is the correct one
Answers
Answer:
i don`t understand you
Step-by-step explanation:
but i think i phone...?
Answer:
ummm there is no other context did you mean to post a picture? All I could find was this
The Apple User Group Connection (AUGC) was established in 1985 by Apple and led by Apple employee Ellen Petry Leanse.
I NEED HELP ,PLEASEEEE!!!!!
Shonda goes to a restaurant with no more than $15 to spend. She buys a burger that costs $10.50 and one other item. Write an equation to express how much money Shonda spent at the restaurant.
Answers
Answer:
she spent $10.50 sense she didnt buy anything she has $4.50 left
Step-by-step explanation:
PLZ HELP ME I BEG YOU !!!!!!!!!!!!!!
Answers
1000-600=400
400 divided by 5 = 80
answer is 80 adults
can u mark me brainliest?
A triangle has interior measures of 20° and 90°. What is the measure of the third angle?
Answers
180 - 90 - 20
= 70 degrees
a vase costs $2 bridget has some money if she gets $4.45 more she can buy 5 vases how much money does she have
Answers
Answer:
Bridget has $5.55.
Step-by-step explanation:
First let's find how much money Bridget needs to buy 5 vases. To do this, multiply the cost per vase by the amount of vases she wants to buy:
2 * 5 = 10
It would cost $10 to buy 5 vases.
Bridget needs $4.45 in order to buy 5 vases. So, to find how much money she already has, subtract the amount of money she needs from the total cost of the 5 vases:
10 - 4.45 = 5.55
Bridget has $5.55.
Answer:
$ 5.55
Step-by-step explanation:
Find the price of 5 vases
Cost of 5 vases = 5 * 2 = $ 10
She needs $4.45 to buy 5 vases. If we subtract this 4.45 from $10, the result will be the money she has already with her
Money Bridget has = 10 - 4.45
= $ 5.55
An elevator started at the first floor and went up 18 floors. It then came down 11 floors and went back up 16. At what floor was it stopped?
Answers
Answer:
24th
Step-by-step explanation:
1+18=19
19-11=8
8+16=24
3600
in standard
form
Answers
Answer:
3.6 x 10^3
Step-by-step explanation:
HELLLPPPP PLEASSSSEEE &&& THANK UUUU
Answers
Answer:
y = -1/2x + 1
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define variables
Slope m = -1/2
y-intercept b = 1
Step 2: Write linear function
y = -1/2x + 1
For question 15-16, find the value of x that would prove y || z. State the conserve used to support your answer.
Answers
Answer:
There is not enough information, but in any case, rephrase.
I need help with this please
Answers
2 points on line: (4,0), (0,-2)
(-2-0)/(0-4) = -2/-4 = 1/2
a) the slope is 1/2
Y = 1/2x + b
0 = 1/2(4) + b
0 = 2 + b, b = -2
b) -2 is the y intercept
Put the equation together
c) y = 1/2x - 2
10 kg of potatoes cost $4.50. How much will 50 kg of potatoes cost at this rate?
Answers
Answer:
$22.5
Step-by-step explanation:
10 kg=$4.50
50kg = x
(do cross multiplication)
10x =225
x=$22.5
What are multiplication facts that equal 9
Answers
Answer:
3*3 4.5*2 9*1
Step-by-step explanation:
Answer:
1×9,2×4.5,3×3,9×1
Step-by-step explanation:
I hope this helps in any way.
Have a great day!
rate of change of 15
Answers
Answer:A General Note: Rate of Change
The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values.
Step-by-step explanation:
Help me out in this question please
Answers
20
Step-by-step explanation:There are two ways to solve this (both will end up with the same answer):
1st way:
You can find 4/9 of 36 to find how many displays the class explored so far. You can write it as 4/9 x 36, which is equal to 16. So, the class explored 16 displays so far. All you need to do is subtract 16 from 36 to find how many displays the class needs to explore, which can be written as 36-16, and is equal to 20.
Final answer: 20
2nd way:
You can do 1 minus 4/9 to find the left over fraction of the displays that the class needs to explore, which is equal to 5/9. Then, you need to find 5/9 of 36 to find how many displays are left for the class to explore. You can write it as 5/9 x 36, which is equal to 20.
Final answer: 20
Hope you understand and that this helps with your question :)
11 ^ 2 power equals what
Answers
A number raised to a power is the same as multiplying the number by itself the number of times of the power.
11^2 = 11 x 11 = 121
The answer is 121
answeerrrrrrrr pleaseeeee C:
Answers
Answer:
140 feet
Step-by-step explanation:
3 seconds times 20 = 1 minute
so you have to do 7 feet times 20 to get 140
PLEASE HELP!
Find x - y less than 0.
A. - y - x
B. x - y
C. - x + y
Answers
Please help!!!!! Can show work I’m stuck !!!!!!!!!
Answers
Parallel lines r and s are cut by two transversals, parallel lines t and u. Lines r and s are crossed by lines t and u to form 16 angles. Clockwise from top left, at the intersection of r and t, the angles are 1, 2, 3, 4; at the intersection of s and t, 5, 6, 7, 8; at the intersection of u and s, 9, 10, 11, 12; at the intersection of u and r, 13, 14, 15, 16. Which angles are alternate interior angles with angle 3? Angle5 and Angle13 Angle7 and Angle15 Angle6 and Angle16 Angle8 and Angle14 Mark this an
Answers
Answer:
5 and 13
Step-by-step explanation:
I got it right on edge
Answer:
5 and 13, got in right in edge 2020
Step-by-step explanation:
You are canning 40 cups of applesauce. You have 20 glass jars, each of which will hold 134 cups of applesauce. Choose the correct explanation(s) that explain why you do not have enough jars.
You do not have enough jars because 20 jars will only hold 35 cups of applesauce.
You do not have enough jars because you have enough applesauce left to completely fill 2 more jars, and almost fill a third jar.
You do not have enough jars because you need a total of 40×134=70 jars.
You do not have enough jars because the 20 jars would need to hold 2 cups each, but each holds 14-cup less than that.
Answers
Answer:
B
Step-by-step explanation:
took the test
What is the answer plz!!!! I Will mark brainliest!!!!!!
Answers
Answer:
a. she doesnt have any points
b. just draw 3 circles with a plus in them
c. kiara has 7 points
d. -7+7=0
Step-by-step explanation:
mark me brainliest
you can mark me brainliest by clicking the crown at the bottom of this answer
i give up on math. help.
Answers
Answer:
try b
Step-by-step explanation:
Answer:
The answer is A. g(x) = f(x) + 4
A store had 50 bottles of olive oil. Each week, 40% of the olive oil bottles were sold and 20 new bottles arrived in shipments. Which recursive function best represents the number of bottles in the store, given that f(0) = 50?
Answers
Answer:
f(n) = f(n-1)*.6 + 20
Step-by-step explanation:
f(0) = 50
f(n) = f(n-1)*.6 + 20
In fact, since f(0) = 50, f(n) = 50.
he first five multiples for the numbers 4 and 6 are shown below.
Multiples of 4: 4, 8, 12, 16, 20, . . .
Multiples of 6: 6, 12, 18, 24, 30, . . .
What is the least common multiple of 4 and 6?
2
4
12
24
Answers
Answer:
12
Step-by-step explanation:
Answer: 12
Step-by-step explanation:
This is my study island math and I need all the questions to be done so I’m doing them in order.
Answers
Answer:
A
Step-by-step explanation:
Hope I helped
Answer:
The answer is A, $11.60
Step-by-step explanation:
0.66=spent 9 minutes
0.66x9=5.94
5.94+5.66=$11.60
Btw, luv ur profile pic uwu!
Kendra is buying a Nintendo Switch with a price tag of $300. The sales tax rate where Kendra is purchasing the
Switch is 9.5%. How much will Kendra pay altogether for the Switch?
Answers
Answer: So for the 9.5% percent I'm not sure if you mean by 9.5% off the price or more for the price so Ill just do both
If you subtract $300 from 9.5% you get 271.5 US$
But if you add $300 to 9.5% you get 328.5 US$