Family size 1 2 3 4 6. 7 Proportion 0.28 0.35 0.15 0.13 0.06 0.02 0.01 Note: In this table, 7 actually represents households of size 7 or greater. But for purposes of this exercise, assume that it neans only households of size exactly 7. uppose you take a random sample of 4000 American households. About how many of these households will be of size 2? Sizes to 7? he number of households of size 2 is about he number of households of size 3 to 7 is about

2.) ProportionsOn April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean, resulting in the loss of more than 1,500 passengers and crew. Below is a table which summarizes the total number of passengers and the number of survivors for the crew, first-, second-, and third-class. Find the proportion of survivors by type of service (crew, first, second, third). Test the hypothesis at the 95% confidence level that the proportion of first-class survivors is the same as .50. What do you calculate for the test-statistic? What is the critical statistic? What is the conclusion of your hypothesis test?               Class       Passengers       Survived               Crew            885                      212               First             325                      202              Second        285                      118              Third            706                      178                    Total            2201                     710

Hi could you answer the blanks?

Ch 13

Q2: The median age of the children is: 29 30.5 28.5 28

Solve the last question please

Only c needs answered

Question 5 A survey of 1047 Americans found that 835 drive to work. a. What is n? b. What is x? c. Many textbooks use the symbol p to represent a sample proportion. What is p? Round to three decimals. Submit Question or MacBook Air

A researcher wants to determine the percentage given below. Describe how the researcher should apply the five basic steps in a statistical study. (Assume that all the people in the poll answered truthfully.) the percentage of volunteers that volunteer over 10 hours per week Determine how to apply the first basic step in a statistical study in this situation. Choose the correct answer below. A. The population is all volunteers that volunteer over 10 hours per week The researcher wants to estimate the number in this population that volunteer over 10 hours per week OB. The population is all volunteers. The researcher wants to estimate the percentage in this population that volunteer over 10 hours per week. C. The population is all volunteers that do not volunteer over 10 hours per week. The researcher wants to estimate the number in this population that do not volunteer over 10 hours per week. D. The population is all volunteers. The researcher wants to estimate the percentage in this…

for b: add one more column with heading "proportion" and fill the numbers out with your calculations