Answer:They spend $39.89
Step-by-step explanation:
Vampire:4•3.99=15.96
Zombie:2•1.04=2.08
3•0.79=2.37,2•3.49=6.98
Mummy:5•2.50=12.50
The Werewolf doesn’t buy anything
15.96+2.08+2.37+6.98+12.50=$39.89
divided by the change in the input values.
Using the p-value method, the decision rule is:
- |z| < 1.645: do not reject the null hypothesis.
- |z| > 1.645: reject the null hypothesis.
<h3>What is the relation between the p-value and the test hypothesis?</h3>
Depends on if the p-value is less or more than the significance level:
- If it is more, the null hypothesis is not rejected.
- If it is less, it is rejected.
In this problem, we have a two-tailed test, as we are testing if the mean is different of a value. For a significance level of 0.1, the critical value of z(when a p-value of 0.1 is obtained) is of |z| = 1.645, hence the decision rule is:
- |z| < 1.645: do not reject the null hypothesis.
- |z| > 1.645: reject the null hypothesis.
More can be learned about p-values at brainly.com/question/13873630
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Answer: B. 130
Step-by-step explanation:
Answer:
14x+4
Step-by-step explanation:
