Help it’s 20 points!! Of a exit ticket!.
1 answer:
You might be interested in
Answer:
Lets a,b be elements of G. since G/K is abelian, then there exists k ∈ K such that ab * k = ba (because the class of ab, is equal to
, thus ab and ba are equal or you can obtain one from the other by multiplying by an element of K.
Since K is a subgroup of H, then k ∈ H. This means that you can obtain ba from ab by multiplying by an element of H, k. Thus, . Since a and b were generic elements of H, then H/G is abelian.
Answer:
a
The null hypothesis is
The alternative hypothesis
b
The 95% confidence interval is
Step-by-step explanation:
From the question the we are told that
The population mean is
The sample size is n = 30
The sample mean is
The standard deviation is
Given that the confidence level is then the level of significance is mathematically represented as
=>
Next we obtain the critical value of from the normal distribution table
The value is
Generally the margin of error is mathematically represented as
substituting values
The 95% confidence interval confidence interval is mathematically represented as
substituting values