Lol your a little kid but hold on
B. The variable d represents an unknown number. So, 21+d, is equal to 21+an unknown number.
Answer:
Give
null hypothesis: H0 = 5.5
alternative hypothesis: Ha different 5.5
standard error = 1 / (31) 1/2= 0.1796
we deduce that:
t stat = (5.2-5.5) /0.1796 = -1.67033
p-value = 0.105
the null hypothesis cannot be rejected because the value of p is greater
If you want rough hours, it would be 6. Round the 10:52 to 11, and the 4:53 to 5, its 6 hours. You want specifics though, it would be exactly 6 hours and 1 minute.
So you want to add together 4, 6, 11, and 9.
So to make it easier, I would first add together 4 and 6, and 11 and 9.
4 and 6 added together is 10
11 and 9 added together is 20
So, just 20 + 10, or 30.
