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sesenic [268]
2 years ago
12

Past experience indicates that the time re- quired for high school seniors to complete a standard- ized test is a normal random

variable with a standard deviation of 6 minutes. test the hypothesis that σ = 6 against the alternative that σ < 6 if a random sample of the test times of 20 high school seniors has a standard deviation s = 4.51. use a 0.05 level of significance.
Mathematics
1 answer:
seropon [69]2 years ago
6 0
With a standard deviation of 6 minutes, we will test the hypothesis that σ = 6 against the alternative that σ < 6 if a random sample of the test times of 20 high school seniors has a standard deviation s = 4.51. use a 0.05 level of significance. <span /><span><span>
</span></span>
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Answer:

Step-by-step explanation:

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3 years ago
Y=2x-5<br> 3x+8y+32=56 <br> What does y and x equal?
AVprozaik [17]
Y = 2x - 5
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<u>      + 8   + 8</u>
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5 0
2 years ago
Find the area of the triangle with the given measurements. A = 48°, b = 30 ft, c = 14 ft
Mariulka [41]

Answer:

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Step-by-step explanation:

The applicable formula for the area of the triangle is ...

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Filling in the given numbers, you have ...

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Sufficient digits are provided here so that you can round to the precision you (or your computer) may desire.

3 0
3 years ago
PLEASE HELP!
erica [24]

The correct next step that Cynthia should do is to:

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4 0
3 years ago
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