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babunello [35]
3 years ago
15

The graph below does not represent a function because it fails the vertical-line test.

Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0
The correct answer is C
.......................
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A sprinkler system is being installed in a newly renovated building on campus. The average activation time is supposed to be at
melomori [17]

Answer:

A) t = 1.73

B) p-value =  0.0558

C) Data is not statistically significant because the p-value of 0.0558 is more than the significance value of 0.05

D) The decision means that the design specifications are not met.

E) Type II error

Step-by-step explanation:

The hypotheses are:

H₀: μ = 20

H₁: μ > 20

A) Formula for the test statistic is;

t = (x' - μ)/(s/√n)

Now, we are given;

x' = 21.5

μ = 20

s = 3

n = 12

Thus;

t = (21.5 - 20)/(3/√12)

t = 1.73

B) we have our t-value as 1.73

Now, Degree of freedom(DF) = n - 1

So,DF = 12 - 1 = 11

Using significance level of α = 0.05, t-value = 1.73 and DF = 11, one tailed hypothesis, from online P-value calculator attached, we have;

p-value =  0.0558

C) Data is not statistically significant because the p-value of 0.0558 is more than the significance value of 0.05

D) We will not reject the null hypothesis. The decision means that the design specifications are not met.

E) If the true average activation time of the sprinkler system is, in fact, equal to 20 seconds, then the null hypothesis is false.

Since we did not reject the null hypothesis even though it is false, the error that was committed was therefore a type II error.

4 0
3 years ago
The local humane society has 5 cats, 9 dogs, and 2rabbits that need home. What fractional part of these pets are cats?
kykrilka [37]

Answer:

5/16 i think

Step-by-step explanation:

3 0
3 years ago
Explain how you could write 1/5 miles as a fraction with 10 in the denominator. A fraction with 100 in the denominator, and as a
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2/10 20/100 Times 1/5 by 2 on both sidez and then times that by ten to get the second answer
8 0
3 years ago
Need help, am confused
Lunna [17]

Answer:

  • C. 2.7 inches.

Step-by-step explanation:

<u>Missing value looks the same, but it's 0.7 ft. longer than 2 ft.</u>

  • 2 + 0.7 = 2.7

<u>Your answer is 2.7 (C).</u>

4 0
2 years ago
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What is the sum of (q+r)-(r+10)
KATRIN_1 [288]

Answer:

q+10 is the answer

6 0
3 years ago
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