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blondinia [14]
3 years ago
8

True or false: given a sample mean of 2.1 and a sample standard deviation of 0.7 from a sample of 10 data points, a 90% confiden

ce interval will have a width of 2.36.
Mathematics
1 answer:
iris [78.8K]3 years ago
4 0
Your answer is false.

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Calculate the angle subtended by an arc whose length is 89.5cm and radius 12cm​
Mariulka [41]

Answer:

Step-by-step explanation:

angle at the center

\theta=\frac{l}{r}\\where~l=length~of~arc\\r=radius\\\theta=\frac{89.5}{12}~radians

3 0
3 years ago
Evaluate the expression
Allisa [31]

Answer:

Step-by-step explanation:

65

5 0
4 years ago
A toy manufacturer that 6% of its products are defective. if 550 toys are producted in one day, how many we be defective
weqwewe [10]

Answer:

If 550 toys are made in a day, and 6% of them are defective, about 33 of them will be defective.

Step-by-step explanation:

To calculate the number of toys that will be defective, move the decimal of the percentage 2 place to the left. So the 6% will turn into 0.06, then you would multiply 550 by 0.06. Resulting in about 33 toys being defective.

6% = 0.06

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550 x 0.06 = 33

7 0
3 years ago
Draw a rectangle with an area of 12 centimeters and a perimeter of 16 centimeters
lidiya [134]
All I can tell you is 12x16=192
7 0
3 years ago
True or false? If you took a true if then statement and inserted a knot in each closet, the new statement would also be true.
Firlakuza [10]
Answer: FALSE

Actually, the answer to this question depends on whether the clause is reversed or not.

Since we are not told whether the the clause is reversed or not. It is safe to assume that it was retained (i.e. not reversed). So the answer to this question is FALSE because if one takes a true "if-then" statement, inserted a 'not' in each clause, and retained the clauses, the new statement would NOT be true.

On the contrary, if the clause is reversed, the answer would be TRUE, because if one takes a true "if-then" statement, inserted a not in each clause, and reversed the clauses, the new statement would also be true.
6 0
3 years ago
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