Answer:
a) Null Hypothesis: length of each screw is less than 14 centimeters
b) Alternate Hypothesis: length of each screw is equal to or greater than 14 centimeters
Step-by-step explanation:
Complete question
A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than 14 centimeters. The factory believes that the length of the screws exceeds this value and measures the length of screws. The sample mean screw length was centimeters. The population standard deviation is known to be centimeters.
1. What is the null hypothesis?
2. What is the alternative hypothesis?
Solution :
The null hypothesis is basically the problem statement that needs to be tested.
Alternate hypothesis is opposite of that of null hypothesis
a) Null Hypothesis: length of each screw is less than 14 centimeters
b) Alternate Hypothesis: length of each screw is equal to or greater than 14 centimeters
I think it's D because 1.38 is the least then it is 1.4 and the greatest is 1 3/7.
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Using the binomial distribution, there is a 0.2094 = 20.94% probability that exactly 5 of them stayed on their job for less than one-year.
<h3>What is the binomial distribution formula?</h3>
The formula is:
The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem, there is a fixed number of independent trials, each with only two possible outcomes, hence the <em>binomial distribution </em>is used. The values of the parameters are:
n = 15, p = 0.36.
The probability is P(X = 5), hence:
0.2094 = 20.94% probability that exactly 5 of them stayed on their job for less than one-year.
More can be learned about the binomial distribution at brainly.com/question/24863377
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Answer: slope = 1/2
Step-by-step explanation:
points: (4,0) and (6,1)
slope (m) = (y2 - y1) / (x2 - x1)
m = 1 - 0 / 6 - 4 = 1/2
slope (m) = 1/2
Answer:
if the radius of a circle is 36 cm ,then what is the diameter?
c.18 cm