Twelve randomly selected mature citrus trees

Reference no: EM131137978

Twelve randomly selected mature citrus trees of one variety have a mean height of 13.8 feet with a standard deviation of 1.2 feet, and 15 randomly selected mature citrus trees of another variety have a mean height of 12.9 feet with a standard deviation of 1.5 feet. Assuming that the random samples were selected from normal populations with equal variances, construct a 95% confidence interval for the difference between the true average heights of the two kinds of citrus trees.

Reference no: EM131137978

Questions Cloud

Find the rejection region : Find the rejection region. - Compute the power of the test for each of the two hypotheses θ = 0.6 and θ = 0.8.

A study of two kinds of photocopying equipment shows : A study of two kinds of photocopying equipment shows that 61 failures of the first kind of equipment took on the average 80.7 minutes to repair with a standard deviation of 19.4 minutes, whereas 61 failures of the second kind of equipment took on ..

How jennifer department respond to force of suppy and demand : Explain how Jennifers Department can respond to forces of Suppy & Demand while also ensuring customers are treated ethically?

What is the delay of the filter : Determine the ideal impulse response hd [n] to which the Kaiser window should be applied

Twelve randomly selected mature citrus trees : Twelve randomly selected mature citrus trees of one variety have a mean height of 13.8 feet with a standard deviation of 1.2 feet, and 15 randomly selected mature citrus trees of another variety have a mean height of 12.9 feet with a standard devi..

List advantage and opportunity for vis-a-vis economic growth : List the advantage and opportunity for (country of choice) vis-a-vis economic growth. List advantage and opportunity for (country of choice) expansion. List advantage and opportunity for (country of choice) export.

The data constitute independent random samples : Assuming that the data constitute independent random samples from normal populations with equal variances, construct a 99% confidence interval for the difference between the true average heat-producing capacities of coal from the two mines

An engineer plans to measure the resistance : To study the effect of alloying on the resistance of electric wires, an engineer plans to measure the resistance of n1 = 35 standard wires and n2 = 45 alloyed wires. If it can be assumed that σ1 = 0.004 ohm and σ2 = 0.005 ohm for such data, what c..

What is the posterior expected value of beaus weight : Let's suppose that the weight of male giraffes is normally distributed with mean 1200 kg and standard deviation 200 kg.- What is the posterior expected value of Beau's weight?

User Account

All Pages