Recent research indicated that about
20 %
of children in a certain country are deficient in vitamin D. A company that sells vitamin D supplements tests
400
elementary school children in one area of the country. Use a Normal approximation to find the probability that no more than
67
of them have vitamin D deficiency.
The probability is approximately ______
(Round to three decimal places as needed.)
Recent research indicated that about 20 % of children in a certain country are deficient in...
Recent research indicated that about 25% of children in a certain country are deficient in vitamin D. A company that sells vitamin D supplements tests 320 elementary school children in one area of the country. Use a Normal approximation to find the probability that no more than 67 of them have vitamin D deficiency. The probability is approximately what?
Recent research indicated that about 20% of children in a certain country are deficient in vitamin D. A company that sells vitamin D supplements tests 370 elementary school children in one area of the country. Use a Normal approximation to find the probability that no more than 59 of them have vitamin D deficiency. The probability is approximately ....
Recent research indicated that about 20% of children in a certain country are deficient in vitamin D. A company that sells vitamin D supplements tests 390 elementary school children in one area of the country. Use a Normal approximation to find the probability that no more than 74 of them have vitamin D deficiency.
A recent study of 3000 children randomly selected found 23% of them deficient in vitamin D. a) Construct the 98% confidence interval for the true proportion of children who are deficient in vitamin D. left parenthesis nothing comma nothing right parenthesis (Round to three decimal places as needed.) b) Explain carefully what the interval means. A. We are 98% confident that the interval contains the true proportion of children deficient in vitamin D. B. We are 98% confident that the...
Support that recent pol found that 50% of adults in a certain country believe that the overall state of moral values is poor a survey of a random sample of 15 adults in this country is conducted in which they are asked to disclose their feelings on the rate of moral values, como parts through to below Gero habet bominion Find and were the probably the exactly 10 of the surveyed to the vale of morali ispor The pray that...
1. Approximately 30% of obese patients develop diabetes (p=0.3). If a physician sees 10 patients (n=10) who are obese, what is the probability that half of them will develop diabetes (Pr X=5)? [Hint: use the binomial equation] A. 0.10 B. None are correct C. 249.8 D. 3.34 * 10-6 E. 0.01 2. Obesity is a growing problem in the U.S. and educators are looking to determine the probability of children in their schools becoming obese...
Suppose that a recent poll found that 50% of adults in a certain country believe that the overall state of moral values is poor. If a survey of a random sample of 20 adults in this country is conducted in which they are asked to disclose their feelings on the overall state of moral values, complete parts (a) through (e) below. Click here to view the table for the binomial probability distribution. Click here to view the table for the...
o A random sample of 1015 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without of the 1015 adults surveyed, 512 indicated that televisions are a luxury they could do without Complete parts (a) through (0) below. Growth andardroge Click to view the standard normal distriton tablete (a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions...
A random sample of 1028 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1028 adults surveyed, 527 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Obtain a point estimate for the...
i am stuck can someone help me answer these please
0.2.9 Question Help 0 Find the indicated 10 score. The graph to the right depicts 10 scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2 of the table. 0.99 0 The indicated IQ score, x, is (Round to one decimal place as needed.) Question Help y...