1. The annual incidence of asthma in the general population of children aged 0 to4 is 1.4% for boys and 1% for girls. In a study of 500 boys and 300 girls aged 0 to 4with smoking mothers, 10 boys and 4 girls are found to have asthma. Use α=.05 for the following questions: a) Construct a 95% confidence interval for the proportion of boys aged 0 to 4 that develop asthma.
b) Using p-value, test whether there is a difference in the annual incidence of asthma among boys aged 0 to 4 years with smoking mothers and the general population
.c) Find a 95% confidence interval for the proportion of girls aged 0 to 4 that develop asthma.
d) Using p-value, test whether there is a difference in the annual incidence of asthma among girls aged 0 to 4 years with smoking mothers and the general population

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

the 3rd on is correct

step-by-step explanation: