Harry saved $100 each week for 8 weeks. He earned $48 on his savings of $800. What interest did Harry earn for every $100?
1 answer:
<h2>Explanation:</h2><h2></h2>
In this problem, we know that Harry saved $100 each week for 8 weeks. In other words, he saved a total amount of money:
We know that he earned $48 on his savings of $800, so for every $100 the interest (I) he earns is:
So, in conclusion Harry did earn $6 in interest for every $100
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Answer:
a)
b)
c)
Step-by-step explanation:
Part a
The significance level given is and the degrees of freedom are given by:
Since we are conducting a right tailed test we need to find a critical value on the t distirbution who accumulates 0.1 of the area in the right and we got:
Part b
The significance level given is and the degrees of freedom are given by:
Since we are conducting a left tailed test we need to find a critical value on the t distirbution who accumulates 0.01 of the area in the left and we got:
Part c
The significance level given is and
and the degrees of freedom are given by:
Since we are conducting a two tailed test we need to find a critical value on the t distirbution who accumulates 0.025 of the area on each tail and we got: