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1. Construct a confidence interval of the population proportion at the given level of confidence. x=120, n=300, 99% confidence
2. A researcher wishes to estimate the proprotion of adults who have high speed internet access. What size sample should be obtained if she wishes to estimate to be within 0.05 with 99% confidence if
a. She uses a previous estimate of 0.58?
b. She does not use any prior estimates?
3. A researcher wishes to estimate the percentage of adults who support aboloishing the penny. What size sample should be obtained if he wishes the estimate to be within 4 percentage points with 95% confidence if
a. He uses a previous estimate of 32%?
b. He does not use any prior estimates?
MATH1550H: Assignment: Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
MATH1550H: Assignment: Question: Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
MATH1550H: Assignment: Questions: Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.
Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
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