Formula Generator - CONFIDENCE.T function

The CONFIDENCE.T function is used to calculate the width of half the confidence interval for a Student's t-distribution. It takes three arguments: alpha, which represents the significance level; standard_deviation, which is the standard deviation of the population; and size, which is the sample size. The function returns the width of half the confidence interval.
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To obtain the CONFIDENCE.T formula from an AI chatbot, you could ask: "What is the formula for calculating the confidence interval for a given sample mean, without knowing about CONFIDENCE.T in Excel?"

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CONFIDENCE.T formula syntax.

The CONFIDENCE.T function in Excel is used to calculate the confidence interval for a population mean, based on a sample. The syntax for the CONFIDENCE.T function is as follows: CONFIDENCE.T(alpha, standard_dev, sample_size) - alpha: This is the significance level or the desired level of confidence. It is typically a value between 0 and 1, representing the probability of obtaining a confidence interval that contains the true population mean. - standard_dev: This is the standard deviation of the population. If the standard deviation is unknown, you can estimate it using the sample standard deviation. - sample_size: This is the size of the sample that you are working with. The CONFIDENCE.T function returns the margin of error, which is the amount by which the sample mean is likely to differ from the true population mean. It is calculated as the product of the standard error (standard_dev / sqrt(sample_size)) and the appropriate t-value from the Student's t-distribution. Note that the CONFIDENCE.T function assumes that the sample is drawn from a normally distributed population.

Use Cases & Examples In these use cases, we use the CONFIDENCE.T function to calculate the confidence interval for a population mean, given a sample mean, sample size, and desired level of confidence.
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FAQ
What does the CONFIDENCE.T function do?
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What does the sample size represent in the CONFIDENCE.T function?