Answer: t _(α/2) = 2.060
Step-by-step explanation:
Given that;
sample size n = 26
confidence interval = 95%
level of significance α = ( 1 - 95/100 ) = 0.05
but from the question the salaries (26) are use to estimate the mean of the population so, its a two tail test
therefore our level if significance α will be divided by 2 = 0.05/2 = 0.025
now our degree of freedom df = 26 - 1 = 25
FROM standard t-table value
the critical value of t for the level of significance 0.025
and 25 degree of freedom is 2.060
therefore, t _(α/2) = 2.060
Answer: Modes: 3, 5, 7
Step-by-step explanation:
The numbers, 3, 5, and 7, all were repeated. This gave them the total of 2 times they appeared in the sample set. Mode is the most frequent number that appears in the set, which in this case is 3, 5, and 7.
Answer:
area = 18 units
Step-by-step explanation:
the only one that applies is:
Sara runs 14 miles every 4 days = 7 miles every 2 days = 7/2
