Which of the following are true statements? The assumptions for interval for the

Question

Which of the following are true statements? The assumptions for interval for the population mean when the population standard deviation is The Student's t distribution can be used to find a confidence interval for the population mean if outliers are present in a small sample. When the number of degrees of freedom is small, The Student's t curve is O more spread out than the the Student's t distributionunknonw are: 1) We have a normal curve simple random sample; 2) Either the sample size is large (>30) or the population is approximately normal is close to the normal

Explanation / Answer

Solution:-

a) True - The students's t-distribution can be used to find a confidence interval for the population mean if outliers are present in a small sample.

b)True

The student's t curve is more spread out than the normal curve.

c) False,

The student's t distribution is close to the normal distribution when degree of freedom is large.

d) True

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