Consider the following hypothesis statement using alpha =0.01and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. Complete parts a and b.
Upper H 0 : mu1 - mu 2= 0 |
x overbar 1= 116.5 x overbar 2 = 121.0
Upper H 1 : mu 1 - mu 2 not equals 0 |
s 1 = 25.7 s 2 = 15.4
n 1 = 14 |
n 2 = 21
a. Calculate the appropriate test statistic and interpret the result.
The test statistic is
negative 0.60
The critical value(s) is(are)
-2.86 , 2.86
Because the test statistic falls within the critical value(s),do not reject the null hypothesis.
b. Identify the p-value from part a and interpret the result.
The p-value is.....??????
.
(Round to three decimal places as needed.)
Here n1=14, n2=21
Here the sample sizes are small
so, we need to use the t- test
to find the p value for the test statistic t = -0.6
we have to use the t- tables
when we use the t - tables to find the p-value we will get the range for the p-value
we can not get the exact p-value from t-tables
so we have to use the software to find the exact p-value
Consider the following hypothesis statement using alpha =0.01and data from two independent samples. Assume the population...
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