Answer:
40 pounds
Step-by-step explanation:
Given: Cost of a candy =
per pound
Cost of candy
Total amount of mixture of be produced =
Selling price of mixture =
Let´s x be the amount of to be mixed in the mixture.
∴ Cost of in the mixture = 12x
Next, Cost of in the mixture =
And we know the cost of final mixture =
Now, putting all the value in the equation
⇒
⇒
⇒
∴
∴ 40 pounds of candy worth $12 per pound to be mixed in the mixture.
Answer:
A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.
Based on this the correct system of hypothesis are:
Null hypothesis:
Alternative hypothesis
Step-by-step explanation:
We have the following info given from the problem:
the random sample of voters selected from the town
represent the proportion of residents favored construction
represent the value desired to test.
A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.
Based on this the correct system of hypothesis are:
Null hypothesis:
Alternative hypothesis
And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:
(1)
And with the data given we have: