Answer:
.48
Step-by-step explanation:
$1.00-.52=.48
Answer:
Reject H0 if Z ≤ critical value
- 2.8747978 ≤ 1.645
Step-by-step explanation:
Setting the null and alternative hypothesis :
H0 : μ = 3.5
H1 : μ < 3.5
Sample size (n) = 40
Mean (m) = 3 minutes
Standard deviation (s) = 1.1 minutes
Test statistic : Z = (m - μ) / (s/√n)
Z = (3 - 3.5) / (1.1/√40)
Z = - 0.5 / 0.1739252
Z = - 2.8747978
Zcritical at α 0.05 = 1.645
This is a left tailed test :
Hence rejection region:
Reject H0 if Z ≤ critical value
- 2.8747978 ≤ 1.645
Answer:
yes they are
Step-by-step explanation:
Here is your answer
REASON:
Formula for volume of rectangular prism= l×w×h
where, l=length=11cm
w=width=5cm
h=height= 6cm
So, volume= 11×5×6 cm^3
=330 cm^3
HOPE IT IS USEFUL
Answer: b plsama
Step-by-step explanation: