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Salsk061 [2.6K]
2 years ago
12

Someone, please! lend me a hand I'm confused

Mathematics
1 answer:
bija089 [108]2 years ago
7 0
I believe the answer is B.
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The tuft bind strength of a synthetic material used to make carpets is known to have a mean of 100 lb and standard deviation of
emmasim [6.3K]

Answer:

The null hypothesis is: H_{0}: \mu = 100

The alternative hypothesis is: H_{a}: \mu > 100

Step-by-step explanation:

At the null hypothesis, we test if the mean is equal to a certain value.

At the alternate hypothesis, we test if the mean is less than, more than, or different from the value tested at the null hypothesis.

The tuft bind strength of a synthetic material used to make carpets is known to have a mean of 100 lb and standard deviation of 20 lb.

This means that the null hypothesis is: H_{0}: \mu = 100

Could it be that the average tuft strength is above 100 lb?

The world above means that the appropriate alternative hypothesis is: H_{a}: \mu > 100

3 0
3 years ago
A function has y-intercept of -3 and a slope of -7/3. Which equation below describes the function?
Juliette [100K]

Answer:7/8 8/7

Step-by-step explanation:

7 0
2 years ago
The first two angles in a triangle are 100 degrees and 70 degrees. What does the third angle have to be?
melamori03 [73]

Answer:

180 degrees

Step-by-step explanation:

because 52 degrees + 104 degrees + 24 degrees = 180 degrees

8 0
2 years ago
Read 2 more answers
The time until failure of an electronic device has an exponential distribution with mean 15 months. If a random sample of five s
Ainat [17]

Answer:

The probability that the first failure occurs among the five devices is given by

(a) 9 months =\frac{9}{15} or  =0.6

(b) 12 months=\frac{12}{15} or = 0.8

Step-by-step explanation:

probability is given as the; number of required outcome/ total number of possible outcome.

6 0
3 years ago
SOLVE<br><br> 6/y+4 - 2/y-3 = 3<br><br> A. -5/3, -2<br> B. 5/3, -2<br> C. 5/3, 2<br> D. -5/3, 2
lbvjy [14]
Your answer D because that is how it turned out
3 0
3 years ago
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