Answer:
Sample size
Explanation:
In the study the population is known as the sample size. Sample size is defined as the number of samples measured which are used in a survey.
The random picking of 500 people of that age to fill out her survey to describe the attitudes of all 18-year-old Houstonians concerning the legalization of marijuana is known as the sample size of the survey.
The damage may have resulted in <span>brain lesion
</span><span>brain lesion refers to the abnormal formation of your brain's blood vessels.
</span>The only way for us to spot a brain lesion is by using imaging technology such as MRI. If left untreated, brain lesion could lead to change in personality, loss in memory, or even brain aneurysm.
<span>, as measured by reduced length of stay. I believe in this case her response is </span><span>completely randomized design.
In </span><span>completely randomized design, the subject would be assigned treatments, vaccine and placebon in a completely random order, which make it become easiest in the term of analysis and convenience. </span>
<span>In most Spanish-speaking countries, women do not legally change their names upon marriage. The maiden surnames (the first of which is their father's paternal surname and the second of which is their mother's paternal surname) are retained. In the above examples, 'Abad' is the paternal surname, Lourdes could present herself as '... de Arias' (but legally would still be Blanco Cabrera), and PĂ©rez is the apellido materno, the maternal surname.</span>
Answer: t=-5.651
Explanation:
Let 
be the population mean number of hours a week answering their email.
As per given we have
Sample size : n= 783
Sample mean : 
Sample standard deviation: s=7.23
Since population standard deviation is unknown, so our test -statistic has a t-distribution.
Test statistic : 
∴ The test statistic : t=-5.651
