It takes 1 hour for 1 worker to clean an area that is 20 feet by 30 feet. How many workers are needed to clean 18,400 square fee
1 answer:
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Answer: The critical value of the test is 2.807.
Step-by-step explanation:
Since we have given that
n = 24
So, the degree of freedom v = n-1 = 24 - 1=23
Since, n>30, so we will use 't-test'.
Here, α = 0.01
so, According to t-table, we get that
If we take α, then we are taking about two tail test.
If we take then we are talking about one tail test.
But in both the cases, the result will be same.
Hence, the critical value of the test is 2.807.
Answer:
<u><em>Relative frequencies</em></u>
Growth mind set fixed mind set Total
Attendance
every practice 0.7 0.3 1
missed at-least
one practice 0.1344 0.8656 1
<u>Step-by-step explanation:</u>
Growth mind set fixed mind set total
Attendance
every practice 28 12 40
missed at-least
one practice 9 58 67
<u><em>Relative frequencies</em></u>
Growth mind set fixed mind set Total
Attendance
every practice
1
missed at-least
one practice
1
<u><em>Final answer</em></u>:-
<u><em>Relative frequencies</em></u>
Growth mind set fixed mind set Total
Attendance
every practice 0.7 0.3 1
missed at-least
one practice 0.1344 0.8656 1