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3 years ago

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A three‐digit number satisfies the following conditions: The digits are consecutive whole numbers in increasing order; the sum o

f each pair of digits is greater than 2 and less than 8; and the tens digit is an even number. What is the number?

1 answer:

IRINA_888 [86]3 years ago

4 0

Answer: 123
They have to add up to 3 4 5 6 or 7 so it has to be that

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A college entrance exam company determined that a score of 24 on the mathematics portion of the exam suggests that a student is

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Answer:

a) The Z -value 2.397 < 2.576 at 99% or 0.01% level of significance

Null hypothesis is accepted at 0.01% level of significance

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<em>b) </em>

<u><em>Null Hypothesis</em></u>: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

<u>Alternative Hypothesis: </u>H₁: μ ≠ 24

<u>Step-by-step explanation:</u>

<u><em>Step(i)</em></u>:-

Given random sample 'n' = 250

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Standard deviation = 3.3

<u><em>Null Hypothesis</em></u>: There is no significance difference between the college level mathematics and math courses in high school

H₀: μ = 24

<u>Alternative Hypothesis: </u>H₁: μ ≠ 24

test statistic

$Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

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Null hypothesis is Rejected at 0.05% level of significance

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3 years ago

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Because that way you can find the answer when you are given a large amount of information and you don't have to guess until you get the answer right.

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4 years ago

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Answer:

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The price of ant farm = $ 12

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