the ages of children at a daycare center, which takes care of children from the ages of 6 weeks to 10 years, is normally distributed with a mean of 3 and a standard deviation of 0.8 what percentage...
the ages of children at a daycare center, which takes care of children from the ages of 6 weeks to 10 years, is normally distributed with a mean of 3 and a standard deviation of 0.8 what percentage...
Because of limited funding, General Cybernetic Corporation will choose 5 computer hardware assembly plants out of 8 suitable ones (plants “A” through “H”) for modernization, and the remaining 3 will...
According to an article the average salary of Actuaries in the US is $98,620 a year. Suppose that currently the distribution of annual salary of all or actuaries is the US is approximately a normal...
A study about the students graduating within 4 years of their entrance to the universities indicated that 62% of the students do not graduate within 4 years. Suppose a random sample of 500 students...
How to find the margin of error given that .056 <p< 0.75
A large loan company specializes in making car loans for used cars. The board of directors wants to estimtae the average amount loaned for used cars during last year. For a day in which 18 loans are...
A Canadian bond is initially priced at its face value of C$1,000. At the end of the year, the bond is selling for C$1,100. If the Canadian dollar appreciates by 10%, with a 5.5% coupon, what will...
Please help me with this question and help explain what the answer is and how you got it step-by-step. Thanks!! Question/Problem: "Before/After Treatment...
A new drug will not be considered for acceptance by Health Canada unless it causes serious side effects in less than 0.01percent of the population. In a trial with 80,000 people, 9 suffered...
Based on data from the national health survey, the heights of adult woman in the US are normally distributed with mean 63.6 inches and standard deviation 2.5 inches. This semester there are 2460 women...
Based on data from the national health survey, the heights of adult woman in the US are normally distributed with mean 63.6 inches and standard deviation 2.5 inches. This semester there are 2460 women...
According to a newly published report approximately 43% of adults say filing their tax paperwork is worse than a trip to the dentist.If a random sample of 200 is chosen, the probability that at least...
Historically, a production line produces 6% defective items. The production supervisor takes a sample of 100 items frequently and if he finds 8 or more defective products, he stops the line to make...
Calculate 95% confidence interval for the population mean μ. n=100, x-bar=50, sigma=2
n=50 x-bar=26.22 standard deviation=3.7432 Does the confidence interval make us 95% sure that the population mean is at least 25?
A large hospital wants to estimate the mean time before the patients are attended upon arrival to the hospital emergency room. From a past study it is known that the standard deviation of the waiting...
A new drug will not be considered for acceptance unless it causes serious side effects in less than 0.01percent of the population. In a trial with 80,000 people, 9 suffered serious side effects...
a. Let p represent the proportion of all women shoppers who remain loyal to their favorite supermarket. Find a point estimate for p. b. Find a 95% confidence interval for p. Give a brief...
Calculate 95% confidence interval for the population mean μ. n=100, x-bar=50, sigma=2
n=50 x-bar=26.22 standard deviation=3.7432 Does the confidence interval make us 95% sure that the population mean is at least 25? Is the mean much more than 25? please explain...