Answer:
At least 6907 people.
Step-by-step explanation:
Population std deviation = sigma= 10.6
Since population std deviation is known, we can use normal probability table to get sample size from confidence interval.
The sample mean weight loss is within 0.25 lb of the true population mean.
Hence margin of error < 0.25
Margin of error = z critical (std dev/n) where n = sample size
Z critical for 95% = 1.96
Hence 0.25 >1.96(10.6)/sq rt n
Simplify to get
sq rt n > 1.96(10.6)/0.25 = 83.104
Square both the sides to get
n > 83.104 square = 6906.27
i.e. sample size should be atleast 6907.
How can i help you .what is your question
Eighteen and
fifty-two thousandths
Answer:
A line of symmetry divides a shape into two equal parts. I think....
Step-by-step explanation:
Answer:
two
Step-by-step explanation:
the two "words" Bob can make using the three letters t, o, and a are;
oat and tao
hope this helps
