Question

*Is Fast Food Messing With Your Hormones?*

Examine the results of a study^{1} investigating whether
fast food consumption increases one’s concentration of phthalates,
an ingredient in plastics which has been linked to multiple health
problems including hormone disruption. The study included 8877
people who recorded all the food they ate over a 24-hour period and
then provided a urine sample. Two specific phthalate byproducts
were measured (in ng/mL) in the urine: DEHP and DiNP. Find a 95%
confidence interval for the difference, μF-μN, in mean
concentration between people who have eaten fast food in the last
24 hours and those who haven’t. The mean concentration of DEHP in
the 3095 participants who had eaten fast food was x¯F=83.6 with
sF=194.7 while the mean for the 5782 participants who had not eaten
fast food was x¯N=59.1 with sN=152.1.

Round your answers to one decimal place.

The 95% confidence interval is

Answer #1

Given that,

For fast food : nF = 3095,

For Non fast food : nN = 5782,

A 95% confidence level has significance level of 0.05 and critical value is,

The margin of error (E) is,

The 99% confidence interval for (μF - μN) is,

Therefore, the 95% confidence interval is **16.6**
to **32.4**

Is Fast Food Messing With Your Hormones?
Examine the results of a study1 investigating whether
fast food consumption increases one’s concentration of phthalates,
an ingredient in plastics which has been linked to multiple health
problems including hormone disruption. The study included 8877
people who recorded all the food they ate over a 24-hour period and
then provided a urine sample. Two specific phthalate byproducts
were measured (in ng/mL) in the urine: DEHP and DiNP. Find a
99%confidence interval for the...

Is Fast Food Messing With Your Hormones?
Examine the results of a study1 investigating whether
fast food consumption increases one’s concentration of phthalates,
an ingredient in plastics which has been linked to multiple health
problems including hormone disruption. The study included 8877
people who recorded all the food they ate over a 24-hour period and
then provided a urine sample. Two specific phthalate byproducts
were measured (in ng/mL) in the urine: DEHP and DiNP. Find a 99%
confidence interval for...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 3 minutes ago

asked 3 minutes ago

asked 5 minutes ago

asked 7 minutes ago

asked 11 minutes ago

asked 11 minutes ago

asked 24 minutes ago

asked 36 minutes ago

asked 39 minutes ago

asked 39 minutes ago

asked 42 minutes ago