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solniwko [45]
3 years ago
13

Ella and Brian go out to lunch and spend $28.82.

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer:

The correct answer will be B

Step-by-step explanation:

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A survey measures the motivation, attitudes, and study habits of freshman in college. Freshmans’ scores on this survey range fro
MrRissso [65]

Answer:

Option A) 0.0074    

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 110

Sample mean, \bar{x} = 20

Sample size, n = 100

Alpha, α = 0.05

Population standard deviation, σ = 115.35

First, we design the null and the alternate hypothesis

H_{0}: \mu = 110\\H_A: \mu \neq 110

We use two-tailed z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{115.35 - 110}{\frac{20}{\sqrt{100}} } = 2.675

Now, we calculate the p-value from the standard normal table.

P-value  = 0.0074

Thus, the correct answer is

Option A) 0.0074

5 0
4 years ago
Need help please! Can someone explain?
Lynna [10]

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Hope it helps and is correct :)

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Solve for x<br> e³ˣ=4x²<br> How do I do this?
kkurt [141]
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The price of a 7​-minute phone call is ​$1.05. What is the price of an 11​-minute phone​ call?
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Step-by-step explanation:

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