Testing for one population mean

Reference no: EM1317820

Recently the national average yield on municipal bonds has been μ = 4.19%. A random sample of 16 Arizona municipal bonds gave an average yield of 5.11% with a sample standard deviation s = 1.15%. Does this indicate that the population mean yield for all Arizona municipal bonds is greater than the national average? Use α = 0.05. Assume x is normally distributed.

a) State the null and the alternate hypothesis.

b) Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).

c) Compute the z or t value of the sample test statistic.

d) Find the P value or an interval containing the P value for the sample test statistic.

e) Based on your answers to a through d, decide whether or not to reject the null hypothesis at the given significance level. Explain your conclusion in the context of the problem.

Reference no: EM1317820

Questions Cloud

Select whether the pair of lines perpendicular or parallel : Select whether the pair of lines perpendicular or parallel.

Offer one good or service that you think : Offer one good or service that you think would be considered highly price elastic ,one that you think is highly inelastic and Elucidate why.

Integrating a differential equation : Integrating a differential equation given the initial values and exponentiate both sides of the equation for to solve for P(t)

The banks find outing relate to economists traditional : Explain how does the bank's Find outing relate to economist's traditional focus on Illustrate what people do, rather than Illustrate what they say they will do.

Testing for one population mean : Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).

What are the influences of aging population to business : Illustrate what are the influences of aging population to business in developing countries. In these transactions, Explain how much has been added to GDP.

Find the area of region using definite integrals : Compactness and find the Area of region using definite integrals

Finding value of test statistic using two-tail ''z'' : A researcher is interested in whether social assertiveness might be influenced by training procedures. Two groups of college sophomores are randomly selected. Group A subjects are assigned to the "training sessions" and Group B subjects do not rec..

Find the slope of a line : Find the slope of a line.

User Account

All Pages