Question

Siblings. Today there are some 14 million only children in American families, representing about 20% of all kids, according to the U.S. Census Bureau. A recent survey of 370 Texas State University undergraduate students shows 35 do not have siblings in their families (35/370=0.095). Can you safely conclude that percent of bobcat families with one child is significantly smaller than percent of such families in the general population? Perform the test of hypothesis using significance level α = 0.03.

a. What is the sample statistic provided?

b. What is the parameter to be estimated?

c. Write the null and alternative hypotheses.

d. Perform the test.

e. Find the p-value of the test (the table is provided)

f. Mark the graph below and show all components of the test (it's a blank continuous bell shaped curve)

g. Make your decision.

h. State your conclusion in terms of the problem.

Answer 1