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ra1l [238]
3 years ago
7

Glasper -U. Hector recorded the amount of coffee he drank (in milliliters) and the duration of his drive (in minutes) over five

days this week. Plot the data in a scatter plot. Coffee (mL) 100 200 150 125 225 Duration (min) 18 14 15 20 12 Duration 201 18+ 16 Click to add points 14+ 12- 10+ 8+ 6+ 4+ 2+ Coffee 50 100 150 200 250​

Mathematics
1 answer:
AVprozaik [17]3 years ago
3 0

Answer:

thanks if u need help let me know

Step-by-step explanation:

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For each of the following scenarios state whether H0 should be rejected or not. State any assumptions that you make beyond the i
scoundrel [369]

Answer:

a)H_0 :\mu = 4\\ H_1 : \mu \neq 4 , n = 15 , X=3.4 , S=1.5 , α = .05

Formula : t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}

t = \frac{3.4-4}{\frac{1.5}{\sqrt{15}}}

t =-1.549

p- value = 0.607(using calculator)

α = .05

p- value > α

So, we failed to reject null hypothesis

b)H_0 :\mu = 21\\ H_1 : \mu < 21 , n =75 , X=20.12 , S=2.1 , α = .10

Formula : t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}

t = \frac{20.12-21}{\frac{2.1}{\sqrt{75}}}

t =-3.6290

p- value = 0.000412(using calculator)

α = .1

p- value< α

So, we reject null hypothesis

(c) H_0 :\mu = 10\\ H_1 : \mu \neq 10, n = 36, p-value = 0.061.

Assume α = .05

p-value = 0.061.

p- value > α

So, we failed to reject null hypothesis

7 0
3 years ago
Original price $60 makeup 15% retail price is
lara31 [8.8K]
60*115/100=69
Retail price is 69
6 0
3 years ago
Frank has devised a formula for his catering business that calculates the number of meatballs he needs to prepare. The formula i
Aleonysh [2.5K]
<span>m = 4a + 2c

a = 25; c = 5

Replace a with 25. Replace c with 5.
Then evaluate the expression.

m = 4 * 25 + 2 * 5

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Answer: 110 meatballs are needed.</span>
4 0
3 years ago
23. What is the value of x?
andre [41]

Answer:

9

Step-by-step explanation:

If PQ || to BC

Then by BASIC PROPORTIONALITY THEOREM:

\frac{8}{40}  =  \frac{x}{45}  \\  \\  \frac{1}{5}  =  \frac{x}{45}  \\  \\ x =  \frac{45}{5}  \\  \\ x = 9

6 0
3 years ago
Mateo is constructing an equilateral triangle inscribed in a circle with center P. He draws the diameter of the circle through c
spin [16.1K]
<span>Let,
diameter = segment AB through center P.
Set the compass to the radius PB, at B and draw two little arcs that intersect the circumference of the circle at C and D.
Then Triangle ACD will be an equilateral triangle inscribed in the given circle.
Hence,
The right option is :
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7 0
3 years ago
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