When you are testing the difference between two means, the _______ test is used when the population
Question:
When you are testing the difference between two means, the _______ test is used when the population variances are not known.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 55% (9 reviews)
The twosample ttest also known ...View the full answer
Answered By
Marvine mabiya
i am a graduate of kirinyaga university degree of statistics
0.00
0 Reviews
10+ Question Solved
Related Book For
Elementary Statistics A Step By Step Approach
ISBN: 9780077665807
9th Edition
Authors: Allan G. Bluman
Question Posted:
Students also viewed these Statistics questions
-
For small sample cases where we are testing the difference between two population means, when the population standard deviations are unknown, we used an approach in which we assumed that the two...
-
A general method for finding a confidence interval for the difference between two means of normal populations is given by expression (5.21) on page 365. A pooled method that can be used when the...
-
This exercise requires ideas from Section 2.6. In a two-sample experiment, when each item in one sample is paired with an item in the other, the paired t test (Section 6.8) can be used to test...
-
You work for a gas turbine design company and have a client who has a fairly loose specification for a gas turbine engine. You are required to design an aviation gas turbine to power the aircraft...
-
Why is the price at which the quantity demanded equals the quantity supplied the equilibrium price?
-
How did the United States become the worlds largest debtor nation in the 1980s?
-
A drive shaft in the shape of a hollow tube and made of a linear viscoelastic angle-ply laminate is subjected to a torque, \(T\), as shown in Figure 8.32. Develop an analytical model for predicting...
-
The following table contains calculations of several key ratios for Indianola Pharmaceutical Company, a maker of proprietary and prescription drugs. The company is publicly held and is considered a...
-
What are the design considerations for absorption columns in large-scale industrial applications? Discuss the effects of tray design, packing materials, and column geometry on absorption efficiency...
-
The service life of a battery used in a cardiac pacemaker is assumed to be normally distributed. A random sample of ten batteries is subjected to an accelerated life test by running them continuously...
-
If you hypothesize that there is no difference between means, this is represented as H 0 : _______.
-
When the t test is used for testing the equality of two means, the populations must be _______.
-
Name two main types of shares.
-
\(K ightarrow U\) Give a specific example of a system with the energy transformation shown. In these questions, \(W\) is the work done on the system, and \(K, U\), and \(E_{\mathrm{th}}\) are the...
-
A cyclist is coasting at \(12 \mathrm{~m} / \mathrm{s}\) when she starts down a \(450-\mathrm{m}\)-long slope that is \(30 \mathrm{~m}\) high. The cyclist and her bicycle have a combined mass of \(70...
-
\(80 \%\) confidence, \(n=15\) Find the critical values \(\chi_{1-\alpha / 2}^{2}\) and \(\chi_{\alpha / 2}^{2}\) for the given level of confidence and sample size.
-
Motor Company is considering offering a \($1,600\) rebate on its minivan, lowering the vehicles price from \($29,000\) to \($27,400.\) The marketing group estimates that this rebate will increase...
-
91% Determine the critical value z /2 that corresponds to the given level of confidence.
-
What important factor must be kept in mind in tooling multiple-spindle screw machines that does not have to be considered in single-spindle machines?
-
What are current assets and current liabilities? How are they different from non-current assets and non-current liabilities?
-
The average cost of a mans haircut is $21. The standard deviation is $4. If the variable is approximately bell-shaped, within what limits would 68% of the haircut cost?
-
The mean time it takes a group of students to complete a statistics final exam is 44 minutes, and the standard deviation is 9 minutes. Within what limits would you expect approximately 95% of the...
-
The data show the number of specific recorded cases of meningitis for 14 specific states. Find the z values for each a. 10 b. 28 c. 41 10 1 1 28 15 41 4 4 8 2 3 53 34 1
-
You are the new controller for Moonlight Bay Resorts. The company CFO has asked you to determine the company's interest expense for the year ended December 31, 2021. Your accounting group provided...
-
How do the dynamics change in Calm Down by Selena Gomez ?
-
A company's inventory records report the following: August 1 August 5 August 12 Beginning balance Purchase Purchase 23 units @ $13 18 units $12 22 units @ $13 On August 15, it sold 46 units. Using...
Study smarter with the SolutionInn App