Test of hypothesis by using t test

Assignment Help Basic Statistics
Reference no: EM13107219

From a population of cereal boxes marked "12 ounces," a sample of 16 boxes is selected and the contents of each box weighed. The sample revealed a mean of 11.7 ounces with a standard deviation of 0.8. Test to see if the mean of the population is at least 12 ounces. Use a 0.05 level of significance. (may use traditional or p-value method)

Reference no: EM13107219

Questions Cloud

Description of t test : Evolutionary theories often emphases that humans have adapted to their physical environment. One such theory hypothesizes that people should spontaneously follow a 24-hour cycle of sleeping and waking - even if they are not exposed to the usual pa..
Find the normal force exerted on the motorcycle : As part of a circuit act, a person drives a motorcycle with constant speed v around the inside of a vertical track of radius r. If the combined mass of the motorcycle and rider is m, find the normal force exerted on the motorcycle by the track at ..
Explain how well is eat to eat strategy working : Explain how well is Eat2Eat’s strategy working? Illustrate what evidence is there to indicate that the strategy is producing its intended results?
What is the net force acting on the rocket : A rocket with mass 1000kg accelerates upwards at a rate of 20m/s (a) How long does it take before it is going at the speed of sound (334 m/s)? (b) How long does it take before the rocket is at a height of 100km?
Test of hypothesis by using t test : From a population of cereal boxes marked "12 ounces," a sample of 16 boxes is selected and the contents of each box weighed. The sample revealed a mean of 11.7 ounces with a standard deviation of 0.8.
Difference in 3rd party beneficiary and 3rd party assignee : Explain the differences between a 3rd party beneficiary and a 3rd party assignee. Why are assignments of contracts so important for our free enterprise economy?
What is the spring constant of each spring : What is the spring constant of each spring if the empty car bounces up and down 1.4 times each second?
Illustrate what are the alternatives for solving business : Do you agree with Maggie Brown's accounts receivable policy? Illustrate what are the alternatives for solving the business's cash problem?
Academic response to independent sample t test : The managers in a company's East and West regions were rated on the basis of the company's evaluation system. A researcher wishes to conduct a t-test of means to determine if there is a difference between the East and West regions.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability that everyone will pass the exam

If there are 500 students in the school, what is the probability that everyone will pass the exam?

  Introduction to one-sided confidence interval

Under what circumatances do you use a one-sided confidence interval instead of a 2 sided confidence interval?

  Point estimate for the difference between to proportions

The point estimate for the difference between the proportions is:

  Calculating beta and population standard deviation

Assume the population standard deviation (s) is 0.5 and the sample size (n) is 100. Calculate the values for alpha, a type I error and beta, a type II error. (To calculate Beta, consider a mean that is 1 standard error away from the lower end valu..

  Area and visiting other state are dependent

Out of 1000 people surveyed, 600 belonged to urban areas and rest to rural areas. Among 500 who visited other states , 400 belonged to urban areas. Test 5 % level of significance whether area and visiting other state are dependent.

  Calculating confidence interval if sample size is given

Calculate the 90% confidence interval about μ if sample size, n, is 55. How does increasing sample size affect margin of error, E?

  Analysis of variance- one way classification

Analysis of variance- One way classification - Are there differences among these 3 drugs with respect to how long they are retained in the body?

  Finding z-value according to a normal distribution

Assume that a random variable, x, is distributed according to a normal distribution with mean 12 and standard deviation 2. Find the z-value if:

  Estimating the mean salary

I want to estimate within $10 the mean salary of all graduates who were business majors in college. How many business majors would be needed to estimate the mean salary to within 10 with 95% confidence if the population standard deviation is $200.

  Regression equation and percentage of variance

Find the regression equation and percentage of variance and test whether the equation is significant portion of the variance.

  Find the probability that x exceeds

Recent studies have shown that the super-cooling temperature of terrestrial frogs frozen at -6°C has a relative frequency distribution with a mean of - 2°C and a standard deviation of 0.3°C (The first of these studies was reported in Science, May ..

  Prepare a frequency distribution

Prepare a frequency distribution from data given below that describes how long it took a person to drive to work in work week.

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