The work has not been graded but I like the output that was submitted to me. Is it possible for the same prof to do the next assignment I will be submitting? If possible, I will greatly appreciate it.
Hello i need a Good and Positive Comment related with this argument .A paragraph with no more 90 words.
Re:Topic 3 DQ 1
Z-tests and T-Tests are both statistical methods used to test different hypotheses and analyze their differences. The Z test is used to decide if two population means are different when they know the variances. The best time to use a Z-test is when the sample size being used is larger than 30 and the population standard deviation is known. A T-test is used examine two population means, a two sample t-test can be used to determine if two samples are different and this test is most commonly used when the variances of two normal distributions are not known and with smaller sample sizes less than 30. The following are some of the differences that can be noted between Z-tests and the T-tests.
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