2 years ago

(giving brainiest and thanks on the answer and question if correct!

1 answer:

4 0

Answer:

it is option A

Step-by-step explanation:

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ser-zykov [4K]

Answer: a) 0.84 b) 0.67 c) 1.28

Step-by-step explanation:

Using the standard normal distribution table for z-value , we have

(a) The value of $z_{\alpha}$ would result in a 80% one-sided confidence interval : $z_{(1-0.80)}=z_{0.20}=0.8416\approx0.84$

(b) The value of $z_{\alpha}$ would result in a 85% one-sided confidence interval : $z_{(1-0.85)}=z_{0.25}=0.6744897\approx0.67$

(c) The value of $z_{\alpha}$ would result in a 90% one-sided confidence interval : $z_{(1-0.90)}=z_{0.10}=1.2815515\approx1.28$

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3 years ago

mina [271]

Answer:

49 7/12

Step-by-step explanation:

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3 years ago

Zarrin [17]

Answer:3/4

Step-by-step explanation:

1x3=3

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2 years ago

lana66690 [7]

May be it is adding 1000 is it a single number?

6274+1000= 7274 ?

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3 years ago

juin [17]

Answer:

Step-by-step explanation:

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3 years ago