As a pollster, you randomly called 845 voters to know their positions on a California State’s ballot proposition. Only 80% of the voters agreed to answer your questions. Of those who answered you, 386 voters favored the proposition. (a)[2] Explain why this situation should not be considered as the finite population case. (b)[2] Check if the sampling distribution of the sample proportion can be approximately Normal. (c)[3] Construct the 92% CI for the favor proportion π. Sketch the CI. State if π can be 0.52. (d)[3] Construct the 96% CI for the favor proportion π. Sketch the CI. State if π can be 0.55. Hint: Round off probabilities and values to 5 decimal places. Refer to some Excel value lookups:

Step-by-step explanation:

(a)

This is not finite population case because 845 shows the random sample not population.

(b)

Here we have

n = 845 *0.80 = 676 and x=386

Since number of successes (that is 386) and number of failures (that is 290) both are greater than 5 so normal distribution can be assumed.

(c)

[Find solution in the attachment 1]

We cannot conclude that population proportion is 0.52 because it is not in the confidence interval.

(d)

[Find the solution in the attachment 2]

We cannot conclude that population proportion is 0.55 because it is in the confidence interval.

unless if u could do my questions, if not i wouldn't want to

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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