40 POINTS 2 questions
2 answers:
Answer:
First Question: A
Second Question: A
Step-by-step explanation:
First question
The trick is to be able to copy and place the graph so that the two coordinate systems are the same. Desmos is very good at that kind of thing. The graph is given to you on the right upload.
From this you can see that the points that solves the inequalities is anything to the left and above the point (4.8,0.4) which is marked. Therefore the answer is DACK which is A
Part B
The problem is in the testing. You can build 20 children's bikes and 6 adult bikes in less than 120 hours.
Building:20*4 + 6*6 = 80 + 36 = 116 hours. that's less than 120 so you're good
Testing: 20 + 6*4 = 80 + 24 = 104 hours. That's not less than 100.
The answer is A
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Answer:
1) Fail to reject the Null hypothesis
2) We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.
Step-by-step explanation:
A university administrator wants to test if there is a difference between the distance men and women travel to class from their current residence. So, the hypothesis would be:
The results of his tests are:
t-value = -1.05
p-value = 0.305
Degrees of freedom = df = 21
Based on this data we need to draw a conclusion about test. The significance level is not given, but the normally used levels of significance are 0.001, 0.005, 0.01 and 0.05
The rule of the thumb is:
- If p-value is equal to or less than the significance level, then we reject the null hypothesis
- If p-value is greater than the significance level, we fail to reject the null hypothesis.
No matter which significance level is used from the above mentioned significance levels, p-value will always be larger than it. Therefore, we fail to reject the null hypothesis.
Conclusion:
We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.