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Anon25 [30]
3 years ago
7

A student believes that the average grade on the statistics final examination is 87. A sample of 36 final examinations is taken.

The average grade in the sample is 83.96 with a sample standard deviation of 12. Carry out the hypothesis testing that the real mean is less than 87. Use a 0.05 level of significance.
Mathematics
1 answer:
Crazy boy [7]3 years ago
4 0

Answer:

A detailed answer is attached please

Download docx
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alex41 [277]
His speed is 6 2/3 mi/hr.

Our equation is 4 = 3/5s; to solve this, we want to divide both sides by 3/5:

4 ÷ 3/5 = (3/5s) ÷ 3/5
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4/1 × 5/3 = s
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5 0
3 years ago
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John had 84 dollars, and his brother Fred owed 12 dollars to his friend. John gave his brother some money. Fred paid his debt an
Alja [10]

Answer:

John have $36 and he should give $48 to his brother for both to have equal money.

Step-by-step explanation:

Given that,

amount of money John have = $84

amount of money John's brother owed to her friend = $12

$12 of the $84 is going to his brother's friend, that leaves $72 for John and his brother.

If they are to finish with the same amount, then each should have half of the John's money after he paid $12

So,

72/2

= 36 each

but since John's brother have to give 12 rupees in debt so

36+12

= $48

So John should have $36 and he should give $48 to his brother.

4 0
3 years ago
Simplify: a + 2a + 3a + 4a
oksian1 [2.3K]

You just need to factor a to get

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Each locker is shaped like a rectangular prism. Which has more storage space? explain/
seropon [69]
Locker 1 has more storage space because it has a greater volume.
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I hope this helps.
4 0
3 years ago
Which of the following statements must be true based on the diagram below?(Diagram is not to scale.)FDEO EF is a segment bisecto
8_murik_8 [283]

From the diagram given;

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Thus, from the given options;

LINE |EF| is a segment bisector is the only correct option.

6 0
11 months ago
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