Mathematics College

A researcher is interested in the relationship between time spent browsing items in an online store and the total amount purchased from the store. The researcher selects a random sample of visitors to the online store and records the time spent browsing and the total amount of their purchase. The researcher will conduct a t-test for the slope of a regression line, where time spent browsing is the explanatory variable and total amount of purchase is the response variable. Which of the following would be an indication that the normality condition has been met?
A. A sample size that is less than 30
B. A histogram of the residuals that is centered at 0 and strongly right skewed
C. A dotplot of the residuals that is centered at 0, unimodal, and symmetric
D. A boxplot of the residuals that is centered at 100 and does not provide evidence of skewness or outliers
E. A scatterplot where total amount of purchase is the explanatory variable and time spent browsing is the response variable

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Answer 1

Answer:

Step-by-step explanation:

AP Classroom

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Find the value of two numbers if their sum is 25 and their difference is 1.

Answers

Answer:

12 and 13

Step-by-step explanation:

12+13= 25

13-12= 1

What is 9 times 9
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9x9 is 81 and yes its very hard haha

If you’re having trouble with your nines times table use the finger trick. But it only works for 9x1-9-10 so hold up your hands in front of you and your palms facing towards you. Since you’re using 9x9 put your ninth finger down and the amount of fingers on your left would be the amount of tens so their would be 8 tens meaning 80 and the amount of fingers on the right side of the finger that is down would be the ones so there is one finger on the right. After that, you can just add them up. 80+1= 81 if you need another example just comment on this and say if you’re confused.:)

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Answer: (3,4) (-3,4) (3,-3) (-3,-2)

Step-by-step explanation:

50t-43=52t-81
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Answers

Answer: T = 19

Step-by-step explanation:

Hope This Helps!!! : )

Answer:

t=19

Step-by-step explanation:

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Answer:

B it reflected across the X -axis

Step-by-step explanation:

Answer:

Step-by-step explanation:

rotation 180degrees around the origin is the same as reflecting it across the origin and reflecting it switches the signs for both x and y

Is 413.25 a whole number

Answers

Answer:

Step-by-step explanation:

Whole numbers do not have decimals

No. Any integer with a decimal and numbers that aren’t 0 after it is not a whole number. 6.0 is a whole number but 6.73 is not.

Estimate 1.19 and 12

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Answer:

The unit rate is about 10 cents per fluid once of grape of juice.

Step-by-step explanation:

Can someone help me do this please and thank you

Answers

Answer: number 3 is the correct answer

2 1/5

Step-by-step explanation:

Answer:

number 3 is correct I hope this helps

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0.1174
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A minor league baseball team has a member’s club. It costs $30 to join and $3 per ticket. Non-members pay $6 per ticket. How many tickets will it take for the cost to be the same?

Answers

Answer:

2 tickets

Step-by-step explanation:

because if a no member ticket is 6 dollars than than two 3 dollar tickets will equal 6 dollars

write the word sentence as an ineguality.

1. A number W is greater than -3.

2. A number y minus 1/2 is no more than -3/2.

Answers

Answer:

w > -3

y - 1/2 ≤ -3/2

Best answer gets brainiest. On Wednesday at camp, Diana went for a hike at 5:35 A.M. The hike took 1 hour and 30 minutes. As soon as she got back from the hike, Diana played volleyball for 55 minutes. What time did Diana finish playing volleyball?

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Answer:

8:00am I'm not sure, sorry if I get it wrong dude...

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Answer: gta wasted

Step-by-step explanation: your dad left for milk

Put these fractions in order of size, smallest to largest.
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Answers

Answer:

11/15 7/10 4/5 2/3

Step-by-step explanation:

the bigger the fraction the smaller the number

12.48 + (-10.636)
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Answers

Answer:

That answer is 1.814

Step-by-step explanation:

Give a common multiple of 8 and 10 between 1 and 100.

Answers

Answer:

Step-by-step explanation:

8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80

10: 10, 20, 30, 40, 50, 60, 70, 80

In the decimal number 5.078, the digit in the hundredths place is a 7.

True False

Answers

Answer:

false

Step-by-step explanation: The 7 is in the tenths place the hundredths place is the 3rd number to the right of the decimal point.

true
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Answers

Answer:

answer is 38.5 cm². Hope this helps

You bike 11.2 miles in 1.4 hours at a steady rate what equation represents to proportional relationship between the X ours your bike in the distance y in miles that you travel

Answers

Please don't just copy and paste or click an answer! PLEASE READ! I spend 14 minutes and I at least want you to read it!

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Answers

Answer:

I honestly don't know man

Step-by-step explanation:

but you can do this you got it

Answer:

The last option is my best guess

Step-by-step explanation:

the length of 2 wires are in the ratio 5:14 .if the 2 wires are joined together ,what is the ratio of the length of each piece of wire to the total length ?

Answers

Answer:5:19 and 14:19

Step-by-step explanation:

If wire 1 is 5 units long and wire 2 is 14 units long, when joined together they will be a total of 19 units long.

5:19 and 14:19. Bc I will explain my answer when my mom get my phone back

19. How many actions does Jolene perform in 1 hour? 20. In 1 hour, how many more actions does Jolene perform than Pedro 2 Game Efficiency Player (actions per minute) Kendra 350 Pedro 100 Jolene 315 actions 19. In 1 hour, Jolene performs (Type a whole number) 1 More Enter your answer in the answer box and then click Check Answer Check And. please help marking as brian lest

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Answer: Jolene is a character in Phantom Hourglass.3 1 Biography 2 Non-Canon Appearances 2.1 Phantom Hourglass Manga 3 Nomenclature 4 Gallery 5 References Jolene keeps a vigilant eye out for her old friend Linebeck, with whom Link travels, so that she might get her revenge on him. If she spots the SS Linebeck, she will attack and ambush. If this happens, Link must fight off Jolene, and if he is ...

If you have 54/4 how does it equal 13.5

Answers

Simplifying
54 * 4 = 13.5

Multiply 54 * 4
216 = 13.5

Solving
216 = 13.5

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Answer:

I don't like mathematics

please help for algebra :(

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A = bh
Divide by b
A/b = h

albexa ko nepali aartha

Answers

Answer:

what does this mean

Step-by-step explanation:

is this in another language?

Kendra has an unlimited supply of unbreakable sticks of length 2, 4 and 6 inches. Using these sticks, how many non-congruent triangles can she make if each side is made with a whole stick

Answers

Answer:

Unlimited number of triangles.

Step-by-step explanation:

Unlimited number of triangles can be made because Kendra has unlimited supply of unbreakable sticks. If she has limited number of sticks suppose 90 sticks so she can be able to made 30 non-congruent triangles from these number of sticks so if the number is not known so we are unable to say about the number of triangles should be made from unlimited unbreakable sticks.

Which is the graph for f(x)=3 tothepowerof x? Pls just say the letter, no pictures. I can't see them. For 20 points.

Answers

The answer is D. Trust me

The sum of three consecutive even numbers is 228. What is the 3rd number?

Answers

Answer:

74 , 76 , 78

Step-by-step explanation:

Let the first of your number be x, As you are only looking at even integers, the next consecutive even integer would be x+2 and the consecutive even integer after that would be x+4. The sum of these three even integers results in 228 so we can say that:

[tex]First\ even\ number\ + Second\ even\ number\ + Third\ even\ number\ =228 \\\\x+(x+2)+(x+4)=228[/tex]

[tex]x+x+2+x+4=228\\3x+6=228\\3x=228-6\\3x=222\\x=222/3\\x=74\\[/tex]

so the first even number is 74 then the second consecutive even number is 76 then the third consecutive even number is 78

What's the right answer please

Answers

Answer:

Step-by-step explanation:

a>0 is maximum value of f

Pythagorean Theorem POSSIBLE POINTS : 13:33 Two joggers run 12 miles north and then 8 miles west. What is the shortest distance to reach their starting point? It irrational round to the nearest tenth of a mile.

Answers

Answer:

14.4 miles

Step-by-step explanation:

Given that :

Distance moved North = 12 miles

Distance moved West = 8 miles

Shortest distance to reach starting point :

Let shortest distance to reach starting point = d miles

Using the relation :

Longest side of a right angled triangle:

d = sqrt(8^2 + 12^2)

d = sqrt(64 + 144)

d = sqrt(208)

d = 14.422205

d = 14.4 miles (nearest tenth of a mile)

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