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When should one use a t-test instead of a chi-square test for statistical analysis?
A t-test is used when comparing means of two groups, while a chi-square test is used for comparing frequencies or proportions of categorical data. Use a t-test when comparing numerical data and a chi-square test when comparing categorical data.
When should one use a chi-square test instead of a t-test for statistical analysis?
A chi-square test is used when analyzing categorical data, such as comparing proportions or frequencies between groups. On the other hand, a t-test is used when comparing means between two groups. So, use a chi-square test when dealing with categorical data and a t-test when comparing means.
What statistical test should be used to compare the means of two groups: t test or chi-square?
A t-test should be used to compare the means of two groups, while a chi-square test is used to compare frequencies or proportions between groups.
What is the preparation for a lipid test?
To prepare for a lipid test, you may be asked to fast for 9-12 hours prior to the test, during which you should only drink water. You should avoid eating fatty or fried foods for at least 24 hours before the test. Make sure to inform your healthcare provider about any medications you are taking, as some drugs can affect lipid levels.
Should you wear glasses during visual field test?
While you can do that (as long as one eye is covered at a time), it's more common for the technician to use a lens (based on your prescription) while performing the test. Either way, the test should be performed with your best corrected visual acuity (BCVA).
Does nicotine mask marijuana in a drug test?
No. A tobacco test looks for.. well... tobacco. A marijuana drug test looks for THC.
How to get expected frequency value in chi square test?
For goodness of fit test using Chisquare test, Expected frequency = Total number of observations * theoretical probability specified or Expected frequency = Total number of observations / Number of categories if theoretical frequencies are not given. For contingency tables (test for independence) Expected frequency = (Row total * Column total) / Grand total for each cell
Can you use sodium bisulfide instead of potassium bisulfide in acrolein test?
The Acrolein Test uses Potassium BiSulfate (KHSO4), not Potassium Bisulfide (KHS). It is the BiSulfate ion that does the work, so the Sodium salt should work. You should always test your reagents with glycerine.
In iodoform test can you use ethanol instead of water?
No, you should not use ethanol instead of water when conducting the iodoform test. The test relies on the reaction of iodine with an alcohol in the presence of a base, typically sodium hydroxide, to form iodoform. Water is usually used in the test to help facilitate the reaction. Substituting ethanol for water can affect the outcome of the test.
What are some terms of geography i should know for my grade 7 test?
1st of all, you should be studying in your book instead of online! And 2nd of all, you should REALLY already know that. I am disappointed! :-(
What is the layer called of charged particles within the thermosphere?
This is on the Apex online school exam. You should study instead of askig questions in middle of test.
Is a multiple choice a valid test to determine a manipulative skill?
A multiple choice test is usually not valid to determine learning of manipulative skills. Instead, the student should be able to manipulate the items to prove mastery.
Can you give female urine for nicotine test instead of your?
no.
When should one use a t-test instead of a chi-square test for statistical analysis?
A t-test is used when comparing means of two groups, while a chi-square test is used for comparing frequencies or proportions of categorical data. Use a t-test when comparing numerical data and a chi-square test when comparing categorical data.
Why use t test?
because it is and easy way to text to a friend instead of saying test
Is multiple choice type of test valid to determine learning manipulative skills?
A multiple choice test is usually not valid to determine learning of manipulative skills. Instead, the student should be able to manipulate the items to prove mastery.
Can you use water instead of urine for a drug test what will the results be.?
you'll get disqualified for trying to cheat the test
