A sample of 5 measurements, randomly selected from a normally distributed population, resulted in a sample...
A sample of 5 measurements, randomly selected from a normally distributed population, resulted in a sample mean, x¯¯¯=6.9 and sample standard deviation s=1.28. Using α=0.05, test the null hypothesis that the mean of the population is 7.7 against the alternative hypothesis that the mean of the population, μ<7.7 by giving the following:
find:
(a) the degree of freedom:
(b) the critical t value:
(c) the test statistic:
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A sample of 5 measurements, randomly selected from a normally
distributed population, resulted in a sample...
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A random sample of size 16 is taken from a normally distributed population resulted in a sample standard deviation, s = 10. If we are testing the null hypothesis Ho : o2 = 122 versus the alternative hypothesis Hq : o2 > 122, [Sampel rawak bersaiz 16 yang diambil dari populasi yang bertaburan normal menghasilkan sisihan piawai sampel, s = 10. Sekiranya kita menguji hipotesis nol Ho : o2 = 122 melawan hipotesis alternatif He : > 122 ]...
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