Answer:
-5/4
Step-by-step explanation:
-13/2 / 26/5
-13/2 * 5/26
-65/52
-5/4
i think... :)
whatever value "n" is, it must be greater than 4, cannot be 4 or less.
notice that simplifying inequalities is hardly any different than doing equalities, there's just one difference when using a negative factor.
whatever value "a" might be, it must be equal to "b".
Answer:
simple
Step-by-step explanation:
it's
4+8.6
12.6
Answer:1, 2, 3, 5, 6, 10, 15, 30.
Step-by-step explanation:
Answer:
Step-by-step explanation:
For the null hypothesis,
µ = 60
For the alternative hypothesis,
h1: µ < 60
This is a left tailed test
Since the population standard deviation is not given, the distribution is a student's t.
Since n = 100,
Degrees of freedom, df = n - 1 = 100 - 1 = 99
t = (x - µ)/(s/√n)
Where
x = sample mean = 52
µ = population mean = 60
s = samples standard deviation = 22
t = (52 - 60)/(22/√100) = - 3.64
We would determine the p value using the t test calculator. It becomes
p = 0.00023
We would reject the null hypothesis if α = 0.05 > 0.00023
