Given:
mean = 64
standard deviation = 6
sample size = 50
Standard error of the sample mean = standard deviation / √sample size
Standard error = 6 / √50 = 6/7.07 =<span> 0.85</span>
The answer would be 13.9 kg of gravel used per square meter
Answer:false
Step-by-step explanation:because jaya is not giving her opinion she is asking for others opinions.