A security expert claims that exactly 19% of all homeowners have a home security alarm. State Upper H 0 and Upper H Subscript a in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning.

Null hypothesis :

Alternative hypothesis :

The test is two-tailed test.

Explanation:

A null hypothesis is defined as

hypothesis that proposes that there is no difference between particular characteristics of a population.It takes ' = ', ' ≤' , '≥'

Alternative hypothesis is defined as

hypothesis that proposes that there is a significant difference between particular characteristics of a population.It takes ' ≠ ', ' <' , '>'If alternative hypothesis is two tailed then we apply two tail test and  if alternative hypothesis is left tailed/ right tailed then we apply two left -tailed / right tailed test respectively.

Let p be the proportion of all homeowners have a home security alarm.

As per given, A security expert claims that exactly 19% of all homeowners have a home security alarm.

i.e.  Null hypothesis :

Alternative hypothesis :

Here , the alternative hypothesis is two-tailed.

Therefore, the test is two-tailed test.

Dshould be the answer

We don’t know the parts of the story you’re talking about and don’t know what even happens in the story, so we can’t you. try being more specific when you ask for .