Population mean height of treated plants

Assignment Help Basic Statistics
Reference no: EM13103913

Heights were measured for a random sample of 17 plants grown while being treated with a particular nutrient. The sample mean and sample standard deviation of those height measurements were 31 centimeters and 10 centimeters, respectively.

Assume that the population of heights of treated plants is normally distributed with mean . Based on the sample, can it be concluded that is different from 10 centimeters? Use the 0.05 level of significance.

Perform a two-tailed test. Then fill in the table below.

Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.)

1. The null hypothesis is:

2. The alternate hypothesis is:

3. The type of test statistic is:

4. The value of the test statistic:

5. The p-value:

6. At the 0.05 level of significance can it be concluded that the population mean height of treated plants is difference from 38 centimeters?

Reference no: EM13103913

Questions Cloud

Probability-gas station pump : Gas Station pump signs, at one chain, encourage customers to have their oil checked, claiming that one out of every four cars should have its oil topped.
Compute the economic order quantity : A large bakery buys flour in 25-pound bags. The bakery uses an average of 4,800 bags a year. Preparing an order and receiving a shipment of flour involves a cost of $10 per order.
Sampling without replacement : That a sample of 40 females gives an average production which is more than that based on a sample of 36 males by more than 6 items, assuming sampling with replacement, and that, the sample size for the two sexes being the same, the average product..
Determine approach issue of disparate development : Determine the best way to approach issue of disparate development since their separation at birth? Use the information and research on Nature versus Nurture issue to explain what occurred to the identical twins.
Population mean height of treated plants : At the 0.05 level of significance can it be concluded that the population mean height of treated plants is difference from 38 centimeters?
Probability and variance-cell phone : The cell phone industry is growing at a rapid pace. Current estimates suggest that 60% of people have cell phones. Suppose 25 people were randomly and independently sampled.
Question about transnational management : A car manufacturer and a multinational computer technoloy corporation intend to combine their strengths to develop intelligent sound system for cars.
Binomial probability of vehicle flow : A study of vehicle flow characteristics on acceleration lanes found that one out of every six vehicles uses less than 1/3 of the acceleration lane before merging into the traffic.
Evidence that the population mean force is greater : At the level of significance, is there evidence that the population mean force is greater than 1500 pounds?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Discrete-continuous random variable

What is a discrete and continuous random variable? What is an example of each variable? What are the similarities and differences between each variable?

  Effects of an employee-wide training program

You have been asked to study the effects of an employee-wide training program, in a company of 500 employees, designed to reduce the amount of customer complaints.

  Determining new processes-five step hypothesis

Using the .02 level of significance, conduct a five-step hypothesis testing procedure to determine if the new processes significantly reduced the wait time.

  Sufficient evidence to support the claim of mean speed

There is sufficient evidence to support the claim that the mean speed of all cars on that section of I-10 is greater than the posted speed limit of 70 mph.

  Calculating probability values

What is the probability of selecting an accounting major, given that the person selected is a male?

  Finding regression line by using excel

Super Markets, Inc. is considering expanding into the Scottsdale, Arizona, area. Ms. Luann Miller, Director of Planning, must present an analysis of the proposed expansion to the operating committee of the board of directors

  Random variable-uniform distribution

A random variable Y is uniformly distributed over a range of 0 to 2*pi. Another random variable X is related to Y by X=cos(Y).

  Tendered for two independent contracts

A firm has tendered for two independent contracts. It estimates that it has probability 0.4 of obtaining contract A, and probability 0.1 of obtaining contract B. Find the probability that the firm:

  Upper and lower control chart limit

Determine the upper and lower control chart limit and the lower control chart limit for various values of the fraction defective (p) in the sample taken. Assume a 99.7 % confidence.

  Paragraph about the normal distribution

Write down a paragraph about the normal distribution. In the paragraph give an example of a distribution that you would judge to be nearly normal and explain why you have made that conclusion.

  Computing regression equation by multiple regression model

Using multiple linear regression, compute the regression equation for the following data in Excel.

  Computing the probability that the sample mean

A normal population has a mean of 75 and a standard deviation of 5. You select  a sample of 40. Compute the probability the sample mean is:

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