Mathematics, 16.04.2021 05:20, JaylenGuidish

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 ?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:20, areanna02

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

Answers: 1

continue

Mathematics, 21.06.2019 18:00, LilErvin

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Answers: 1

continue

Mathematics, 22.06.2019 01:30, kayolaaaa53

If two lines form congruent alternate interior angles with a transversal, then the lines

Answers: 2

continue

Mathematics, 22.06.2019 02:50, TheBugDa

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.