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A college professor states that this year's entering students appear to be smarter than entering students from previous years. The college's records indicate that the mean IQ for entering students from earlier years. is 110.3. Suppose we want to sample a smaller number of this year's entering students and carry out a hypothesis test to see if the professor statement can be supported. State the null and alternative hypothesis.

Answers

Answer 1

Answer:

Answer:

$H_(0)$ : μ = 110.3

$H_(a)$ : μ > 110.3

Step-by-step explanation:

Let μ be the mean IQ of this year's entering students.

Then null and alternative hypotheses are:

$H_(0)$ : μ = 110.3 (this year's students mean IQ is at most the mean IQ of the entering students from previous years)

$H_(a)$ : μ > 110.3 (this year's students mean IQ is higher than the mean IQ of the entering students from previous years)

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Answers

The two triangles ΔABC and ΔCDA are congruent. Then the correct option is B.

What is a rectangle?

It is a polygon with four sides. The total interior angle is 360 degrees. A rectangle's opposite sides are parallel and equal, and each angle is 90 degrees. Its diagonals are all the same length and intersect in the center.

The rectangle is ABCD is given below.

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Your office is raising money for charity by collecting aluminium cans for recycling. They get 36p per kilo of cans. A kilo is approximately 72 cans. They have collected 8645 cans How much money have they raised?

Answers

8645 cans divided by 72 per kilo is 120.069 kilos of cans
120.069 kilos times 0.36 pounds= 43.22 pounds raised

Answer:

£43.23

Step-by-step explanation:

8645 cans divided by 72 per kilo is 120.069 kilos of cans

120.069 kilos times 0.36 pounds

Rounded up to 43.23

Layla is cutting bows out of ribbon which will be used to wrap gifts. If Layla needs 21/22of a foot of ribbon to make a bow, and she has 21 feet of ribbon, then how many bows can Layla make?

Answers

Answer:

21 bows

Step-by-step explanation:

Since 21/22 is just 1 short of a whole 1, we can first round it up to a whole 1, and subtract it later. 21 divided by 1 is just 21, and now is the time to subtract the part in which we rounded out. 1/22 times 21 is 21/22, so Layla can't make an entire bow with it.

Como es la fórmula del perímetro de un hexágono?

Espero respuesta
Gracias