0
Still curious? Ask our experts.
Chat with our AI personalities
BeauYou're doing better than you think!
Chat with Beau
EzraFaith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
RafaThere's no fun in playing it safe. Why not try something a little unhinged?
Chat with RafaAdd your answer:
Earn +20 ptsQ: When to t test z test t interval z interval etc?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
Is a z test or t test used more often?
t test, because the z test requires knowing the population standard deviation and that's rare. The t test embodies an estimate of the standard deviation.
What is the difference between t test and z test in hypothesis testing?
It depends on the population.Use t-test for a small population, N < 30; otherwiase, apply z-test or when N>=30.
How do you decide whether to use a z test or a t test when testing a hypothesis about a population mean?
You use a z test when you are testing a hypothesis that is using proportions You use a t test when you are testing a hypothesis that is using means
When finding a confidence interval for true mean spent of all citizens should you us a z-score or t-score?
If the sample size is less then 30 use the T table, if greater then 30 use the Z table.
What is the difference between 2 sample z test statistic and 2 sample t test statistic?
erwtwertgrtewh
Trending Questions
What is the median of the data values less than the median called?
Is the New Testament just for Christians?
How many minutes are equal to 1 - 4 hour?
I have an IQ of 136 is that ok for a 12 year old?
What fraction is equivalent to one seventh?
How do you write 2.28 billion in numbers?
How far is 2000 inches in miles?
Are supposed to give 7 percent of your time to god or the church?
How do you find the hypotonuse in a quadrilatil triangle?
Why is it that when you add two even numbers you get an even result?
6 ft equals how many mm?
What area in the US is most at risk for herpes?
What is 55 over 72 in simplest form?
30divided5 equals 6 how do you call 30 and 5 in a division?
What is 45 90 in simplest form?
What is the property of 8 plus 1 equals 1 plus 8?
What is the SI prefix and symbol for hundredth tenth and thousandth?
Investigate whether or not it's possible to form every square number by adding to primes together?
Calculate cubic units in a rectangle?
What is a fraction that equals 2?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.