4) The prices of chairs sold at 20 different shops have a mean of x =H TL and a standard deviation of Ox=15 TL. a) Test the hyvpothesis Ho: (mean) µx = J TL with the alternate hypothesis that it is less than J TL (H1: µx

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4) The prices of chairs sold at 20 different shops have a mean of x =H TL and a
standard deviation of Ox=15 TL.
a) Test the hyvpothesis Ho: (mean) µx = J TL with the alternate hypothesis that it is
less than J TL (H1: µx<J TL) at 5 % significance level (a). (To be solved by t student
distribution)
b) Test the hypothesis Ho: µx = J TL with the alternate hypothesis that it is not equal
to J TL (H1: µx#J TL) at 10 % significance level (a). (To be solved by normal
distribution)
Take H =
250
Take J =
260
Transcribed Image Text:4) The prices of chairs sold at 20 different shops have a mean of x =H TL and a standard deviation of Ox=15 TL. a) Test the hyvpothesis Ho: (mean) µx = J TL with the alternate hypothesis that it is less than J TL (H1: µx<J TL) at 5 % significance level (a). (To be solved by t student distribution) b) Test the hypothesis Ho: µx = J TL with the alternate hypothesis that it is not equal to J TL (H1: µx#J TL) at 10 % significance level (a). (To be solved by normal distribution) Take H = 250 Take J = 260
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