Data from Gallup collected in March 2019 shows that the proportion of registered Republicans that consider themselves "concerned believers in climate change" was 0.16 (as opposed to 0.77 for Democrats and 0.53 for Independents). Assume this is the true population parameter for registered Republicans. a. If we randomly select 80 registered Republicans, show that we satisfy the requirement for normality of the sampling distribution. That is, show that ≥10and .(1―)≥10

b. What is the mean of the sampling distribution? That is, what is ?

c. What is the standard deviation of the sampling distribution? That is, what is ?

d. According to the empirical rule, 68% of all samples means fall within which two values?

e. What is the probability that a random sample of 80 registered Republicans has a sample mean of at least ?=0.25

f. What is the probability that a random sample of 80 registered Republicans has a sample mean of less than ?

whats the

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.

1. minimum

2. 6400

3. eight

hope this !

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.