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tatiyna
3 years ago
9

A shoe manufacturer was investigating the weights of men's soccer cleats. He felt that the weight of these cleats was less than

the average weight of 10 ounces. After a random sample of 13 pairs of cleats, he found that sample mean was 9.63 and the standard deviation was .585. At a significance level of .05, can it be concluded that the researcher was correct?
Mathematics
1 answer:
andrew-mc [135]3 years ago
8 0

Answer:

it can be concluded that the researcher was correct, or yes

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Step-by-step explanation:

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A = √7 + √c and b = √63 + √d where c and d are positive integers.
mrs_skeptik [129]

Answer:

\displaystyle a:b=\frac{1}{3}

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]

b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]

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b=\sqrt{63}+\sqrt{9c}

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Factoring:

b=3(\sqrt{7}+\sqrt{c})

Find the ration a:b:

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Simplifying:

\boxed{a:b=\frac{1}{3}}

3 0
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What is 240,700 written in scientific notation?
kodGreya [7K]

Answer:

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Step-by-step explanation:

4 0
3 years ago
99 POINTS!!!! WRONG ANSWER GETS REPORTED!
jeka94
This is the correct answer

7 0
3 years ago
Read 2 more answers
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