Answer:
0.4967<p<0.6033
Not effective
Step-by-step explanation:
given that a clinical trial tests a method designed to increase the probability of conceiving a girl.
In the study 580 babies were born, and 319 of them were girls
Sample proportion p=
Standard error of proportion p =
Margin of error for 99%= Z critical * std error=
(Since sample size is large Z value is used)
Confidence interval 99%
=
0.4967<p<0.6033
This method appears to be not effective as the confidence interval 99% contains 0.50 indicating probability for girls is still 0.50
Answer:
9,833,923
Step-by-step explanation:
Subtract 9,089,689 from 18,923,612
Answer:
0
Step-by-step explanation:
-4(-3 + 5 + (-2))
-4(-3 + 5 -2)
-4 • 0
0
Answer:
38.75 is the answer
Step-by-step explanation:
3 1/2 = 3.50 x 5 = 17.50
4 1/4 = 4.25 x 5 = 21.25
17.50 +
21.25 =
38.75
Answer:
a. As given in the question, some towns are located high in the Rockies above the sea level and some are located in the south-central valley of the California below the sea level as well. The meaningful zero does not exists here and the variable of interest is continuous(quantitative). Hence, the elevations can be best described as an interval data.
b. The unemployment rate can not be negative. Therefore, the meaningful zero exist here. Hence, the unemployment rate can be best described as ratio data.