Explanantion of t-test with interpretation of results

Assignment Help Basic Statistics
Reference no: EM13107058

Given the following hypothesis:

Ho:M(miu)>20 (should read greater than or equal to 20) sorry, can't put equal sign

H1:M(miu)<20

A random sample of five resulted in the following values: 18, 15, 12, 19, and 21. Using the.01 significance level, can we conclude the population mean is less that 20?

a. State the decision rule

b. Compute the value of the test statistic

c. What is your decision regarding the null hypothesis?

Reference no: EM13107058

Questions Cloud

Find out which option is most appropriate for your needs : If you were a small business owner, Explain how would you find out which option is most appropriate for your needs? Which of the SBA Loans appears to be most beneficial to a small business? Explain why?
Determine the magnitude of the oscillations : An ideal spring with a spring constant of 25.0 N/m is suspended vertically. A 1.00 kg object is attached to the unstretched spring and released. It then performs oscillations in the form of simple harmonic motions. Determine the magnitude of the o..
Estimating optimal values : Annual demand for number 2 pencils at the campus store is normally distributed with mean 1,000 and standard deviation 250. The store purchases the pencils for 6 cents each and sells them for 20 cents each.
Find the frictional force acting from the road on the tires : you accelerate your car starting from rest. while the car is increasing its speed, the frictional force acting from the road on the tires? A) directed backword, opposing the motion B)IS directed vertically uo, C) is directed forward, in the direct..
Explanantion of t-test with interpretation of results : State the decision rule. Compute the value of the test statistic. What is your decision regarding the null hypothesis?
Explain art historian who has experienced periods firsthand : Write in the first-person point of view of art historian who has experienced periods firsthand. Explain the following points in your analyses.
Illustrate what assumptions model as a deterministic model : Illustrate what assumptions or approximations are necessary to treat this model as a deterministic model? Are there assumptions or approximations acceptable to you?
Decision making process to determine ethical solution : Because of the aggressive actions of his brokerage firm, a stockbroker feels pressure to recommend to a client a stock he does not consider a good investment.
Organization wants to develop a regression model : A consumer organization wants to develop a regression model to predict gasoline mileage (MPG) based on the horsepower of the car's engine and the weight of the car.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Correlation in the population

A random sample of 15 paired observations has a correlation of -.46. Can we conclude that the correlation in the population is less than zero? Use the .05 significance level.

  Conditional probability formula and contingency tables

In large accounting firm, the proportion of accountants with MBA degrees and at least five years of professional experience is 0.75 times the proportion of accountants with no MBA degree and less than 5 years of professional experience.

  Hospital success rate different from national average

Doctors nationally believe that 68% of a certain type of operation are successful. In a particular hospital 47 of these operations were observed and 37 of them were successful. At a = 0.05 is this hospital's success rate different from the nationa..

  What height represents the first quartile

In a survey of women in a certain country (ages 20-29) the mean height was 64.5 inches with a standard deviation of 2.75 inches. What height represents the 90th percentile? What height represents the first quartile?

  Break even and simulated process

As part of their application for a loan to buy Lakeside Farm, a property they hope to develop as a bed-and-breakfast operation, the prospective owners have projected:

  Niagara falls differs from the mean reported by the american

A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...

  Calculate a p-value for your hypothesis test

You take a random sample around town and calculate a p-value for your hypothesis test of 0.0913. What is the appropriate conclusion? Conclude at the 5% level of significance.

  Two independent alternators

A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour flight is .02. What is the probability that

  Highest score earned on the exam

What score was earned by more students than any other score? Why?  What was the highest score earned on the exam?

  Probability that came from tyson wholesale

A defective picture tube was discovered in the latest shipment. What is the probability that it came from Tyson Wholesale?

  Symmetrical limits of the population percentage

The probability is 90% that the sample percentage is contained within what symmetrical limits of the population percentage?

  Determining confidence interval pulse rate

Pulse rate is an important measure of the fitness of a person's cardiovascular system. The mean pulse rate for all U.S. adult males is approximately 72 heart beats per minute.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd