40 is selected from a large population with 0. 4. A second random sample of size n2 = 30 is A random sample of size n1 proportion of successes P1 selected from a different large population with proportion of successes p2 = 0. 6. Which of the following correctly describes the shape, center, and variability of the sampling distribution of P1 – P2? The shape is unknown and Uô, 0. 2 The shape is approximately normal and Uô, - µô, = 0. 2 = 0. The shape is approximately normal and the mean is unknown The shape is unknown and lp, - Hô, = -0. 2 The shape is approximately normal and lp, – Hô, = -0. 2 | None of these are correct.

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40 is selected from a large population with
0. 4. A second random sample of size n2 = 30 is
A random sample of size n1
proportion of successes P1
selected from a different large population with proportion of successes p2 = 0. 6.
Which of the following correctly describes the shape, center, and variability of the
sampling distribution of P1 – P2?
The shape is unknown and Uô,
0. 2
The shape is approximately normal and Uô, - µô, = 0. 2
= 0.
The shape is approximately normal and the mean is unknown
The shape is unknown and lp,
- Hô, = -0. 2
The shape is approximately normal and lp,
– Hô, =
-0. 2
|
None of these are correct.
Transcribed Image Text:40 is selected from a large population with 0. 4. A second random sample of size n2 = 30 is A random sample of size n1 proportion of successes P1 selected from a different large population with proportion of successes p2 = 0. 6. Which of the following correctly describes the shape, center, and variability of the sampling distribution of P1 – P2? The shape is unknown and Uô, 0. 2 The shape is approximately normal and Uô, - µô, = 0. 2 = 0. The shape is approximately normal and the mean is unknown The shape is unknown and lp, - Hô, = -0. 2 The shape is approximately normal and lp, – Hô, = -0. 2 | None of these are correct.
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