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N76 [4]
3 years ago
12

You have an SRS of size 8 and calculate the one-sample t statistic. What is the critical value t∗ such that (a) t has probabilit

y 0.02 to the right of t∗? (b) t has probability 0.85 to the left of t∗?
Mathematics
1 answer:
Rudik [331]3 years ago
7 0

Answer:

a) "=T.INV(1-0.02,7)"

And we got t_{crit}= 2.518

b) "=T.INV(0.85,7)"

And we got t_{crit}= 1.119

Step-by-step explanation:

For this case we have a sample size of n=8, so we can find the degrees of freedom like this:

df = n-1 = 8-1 =7

Part a

For this case we need a value who accumulates 0.02 of the area in the right of the t distribution with 7 degrees of freedom so we can use the following excel code:

"=T.INV(1-0.02,7)"

And we got t_{crit}= 2.518

Part b

For this case we need a value who accumulates 0.85 of the area in the left of the t distribution with 7 degrees of freedom so we can use the following excel code:

"=T.INV(0.85,7)"

And we got t_{crit}= 1.119

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*please help word problem* Adam and Barb had a used book sale over the weekend. Adam sold 4 hardcover books and ten paperbacks a
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Let us assume charge for a hardcover book = $ h

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Let us solve equation(1) and eqation (2) by elimination method.

Multiplying first equation by -5 and second equation by 4 and adding, we get

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3 0
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A spool of rope contains 79 yards of rope. How many​ 4-foot pieces of rope can be cut from the​ spool? How much rope is left​ ov
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<h2>Answer:</h2>

59 can be cut from the spool.

3 Inches is left over.

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  3. 59 is the whole number, .25 is what is left over.
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