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

Another question on Mathematics

Mathematics, 21.06.2019 13:50

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Answers: 2

Answer

Mathematics, 21.06.2019 16:30

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Answers: 2

Answer

Mathematics, 21.06.2019 19:20

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

Answers: 3

Answer

Mathematics, 21.06.2019 21:30

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by

Answers: 1

Answer

You know the right answer?

Data from Gallup collected in March 2019 shows that the proportion of registered Republicans that co...

Questions