Statıstıcs Iı Deneme Sınavı Sorusu #1051276

For a statistical test following a normal distribution, the alternative hypothesis is that the mean equals to a thousand and the standard deviation is ? = 24. A sample of 576 observations is randomly selected and the sample average is equal to 1020. What is the test statistic equal to?

Yanıt Açıklaması:

The test statistic is calculated according to this formula: z = (x -µ)/(? / (n)^1/2 ). Here x=1900, µ=1000, ?=24, n=576, if we plug the numbers into the formula we would have z = (1020 -1000)/(24 / (576)^1/2 ) which is equal to 20

The answer is C

PAYLAŞ:

SORUNUN CEVABI: C

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Statıstıcs Iı Deneme Sınavı Sorusu #1051276

For a statistical test following a normal distribution, the alternative hypothesis is that the mean equals to a thousand and the standard deviation is ? = 24. A sample of 576 observations is randomly selected and the sample average is equal to 1020. What is the test statistic equal to?

SORUNUN CEVABI: C

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