3 years ago

The choice between a z-test and a t-test for a population mean depends primarily on:

1 answer:

6 0

Z-test should be used when the parent standard deviation is known and the sample size is greater than or equal to 30 (to satisfy the Central Limit Theorem). A T-test should be used when these two rules do not apply.

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How can i find a will to live

LenaWriter [7]

Answer:

Call the suicide line

Step-by-step explanation:Pick up a phone and call 1-800-273-8255

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3 years ago

You can buy five cans for green beans at the village market for $2.20 you can buy 10 of the same cans of beans at Sam’s Club for

vovangra [49]

Answer:

The village market is better than Sam's Club

Step-by-step explanation:

If you buy 5 more cans of green beans at the village, it will cost $4.40 in total. Therefore if you go buy the beans at Sam's club, the village one will be cheaper.

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3 years ago

What’s the area in this shape ?

maria [59]

The area is 32 but not sure

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4 years ago

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A concert venue offers tickets in 333 zones: orchestra, grand tier, and balcony. Tickets in the orchestra zone are most expensiv

Sonbull [250]

Answer:

Randomly select 50 tickets from each zone and invite those guests to participate in the survey.

Step-by-step explanation:

I hope this helped

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4 years ago

How many quarters and dimes of 80 coins make up 14.45

siniylev [52]

q + d = 80
.25q + .10d = 14.45

q. + d= 80
25q + 10d = 1445

-10q. - 10d = -800
25q + 10d = 1445

15q. = 645

q = 43 quarters

43 + d = 80

d= 37 dimes

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3 years ago