Richard works at an ice cream shop. Regular cones get two scoops of Ice cream: large cones get three scoops. One hot Saturday, R
1 answer:
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Answer:
The required expression for total number of points you earn is .
Step-by-step explanation:
Consider the provided information.
Let c represents the coin and p represents the points before getting star.
You earn 10 points for every coin you collect in a video game.
......(1)
You find a star that triples your score.
Now the total number of points you earn is(P):
Substitute the value of p from equation 1.
Answer:
Step-by-step explanation:
Given that in a rural area, only about 30% of the wells that are drilled find adequate water at a depth of 100 feet or less.
The sample size n = 80
no of wells less than 100 feet deep=27
Sample proportion =
a) Create hypotheses as
(Right tailed test)
p difference
Std error of p =
b) Assumptions: Each trial is independent and np and nq >5
c) Z test can be used.
Z= p diff/std error =
p value = 0.233
d) p value is the probability for which null hypothesis is false.
e) Conclusion: Since p >0.05 we accept null hypothesis
there is no statistical evidence which support the claim that more than 30% are drilled.