Percentage of people has a dietary beta-carotene

Reference no: EM13103553

Beta-carotene is hypothesised to prevent macular degeneration, an important eye disease in the elderly. A dietary survey was undertaken to measure beta-carotene intake in the typical diet. Assume the distribution of beta carotene intake is Normally distributed with a mean of 2258 mcg and standard deviation of 824 mcg (note: mcg=micrograms).

What percentage of people have a dietary beta-carotene intake below 600 mcg?

According to the US Institute of Medicine, the intake of between 900 mcg and 2775 mcg of beta carotene will keep the blood level within the range associated with a lower risk for chronic diseases. What percentage of people has a dietary beta-carotene intake between these ?two values?

Some studies suggest a beta-carotene intake over 3000 mcg may protect against ?macular degeneration. What percentage of people has a dietary beta-carotene intake of at least ?3000 mcg?

What are the amounts of beta-carotene intake that encompass the middle 90% of the ?distribution?

Reference no: EM13103553

Questions Cloud

Explain brand images have on consumer behaviour : A brand image is one way a firm can distinguish its good or service. But numerous questions are now being raised about the effect brand images have on consumer behaviour.

Why the total field between the two charges zero : Two negative chrges are placed on the x-axis. A charge of -11.4 micro coulmbs is placed at x=0cm and another charge of -5.4 m/C is placed at x=119cm. where on the x axis is the total field between the two charges zero? Answer in cm

Describe forces of influence for critical thinking : Recognize and describe forces of influence which need to be considered while recognizing problem through critical thinking. Explain the methods which can be used during problem formulation.

Probability of customers arriving in store : Customer's arrive at See's Candy Store at a rate of 2 every 5 minutes. What is the probability that no customers will arrive in a 5 minute period?

Percentage of people has a dietary beta-carotene : Some studies suggest a beta-carotene intake over 3000 mcg may protect against ?macular degeneration. What percentage of people has a dietary beta-carotene intake of at least ?3000 mcg?

Probability discussion question : What are examples from the workplace related to how data are collected and displayed to facilitate the determination of probability in the resolution of business-related and marketing problems?

What is the mass of the helium : A 10-cm-diameter cylinder of helium gas is 20 cm long and at 20°C. The pressure gauge reads 120 psi. how many helium atoms are in the cylinder? what is the mass of the helium?

New relationship marketing program : Superba Cravats is a main marketer of men's bow ties. It approximations there are 20 million buyers of bow ties each year that the average wearer of bow ties purchases four ties per year and that the average price per bow tie is $10.

User Account

All Pages