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:
10!
Step-by-step explanation: because 10,20,30,40 they each go by 10
Answer:
10.50 acres per hour or 1.75 per 10 minutes(1/6 of an hour)
Step-by-step explanation:
5/6 of an hour is 50 minutes
1/6 of an hour is 10 minutes
8 3/4 is equal to 8.75
8.75/5 is equal to 1.75 which means she harvests 1.75 acres per hour
1.75 x 6(hour) is equal to 10.50 acres total in one hour
You could make a 6x2 scale, 12x4 scale, and a 3x1 scale.
Answer:
x = 14
Step-by-step explanation:
The 2 given angles are vertical angles abd are congruent, so
4x - 22 = x + 20 ( subtract x from both sides )
3x - 22 = 20 ( add 22 to both sides )
3x = 42 ( divide both sides by 3 )
x = 14
Then
x + 20 = 14 + 20 = 34°
4x - 22 = 4(14) - 22 = 56 - 22 = 34°
