Chapter 7 practice
wkst #2

1. health-care workers who use latex gloves with glove powder on a daily basis are particularly susceptible to developing a latex allergy. in a sample of 46 hospital employees who had a latex allergy,
he mean number of gloves used per week were 19.3 with a standard deviation of 11.9.

a. find a point estimate for the population mean number of latex gloves used per week by all
health-care workers with a latex allergy.

b. find a 95% confidence interval for the mean number of latex gloves used per week by all
health-care workers with a latex allergy. then, interpret your interval.

answer: 1 and 3

step-by-step explanation:

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is