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Find the indicated probabilities.
A local deli chain makes a signature sandwich. Suppose that the amount of fat grams in the signature sandwich are normally distributed with mean µ = 16 grams and standard deviation σ = 1.5 grams. Find the probability that a randomly selected signature sandwich will have no more than 19 fat grams.
What is the dependent variable? is the dependent variable and determine the correlation coefficient. Coefficient of correlation
Problem: Monthly electric bills in a large city are normally distributed with a mean of $240 and a standard deviation of $45. What is the probability that a randomly selected electric bill has a value between $280 and $320?
The distribution of the math portion of SAT scores has a mean of 500 and a standard deviation of 100, and the scores are approximately Normally distributed.
Complete the ANOVA summary table.- How many regions in Florida were considered? How many total observations were obtained?
An elevator starts with 7 passengers and stops at 10 floors (not counting the floor they got on). What is the probability that no two passengers leave the elevator on the same floor?
1. signatures to a petition were collected on 676 sheets. each sheet has enough space for 42 signatures but on many
The fixed monthly cost of operating the production facility is $3000. How many units of part # 2206 have to be sold in a month to break-even?
The following table gives the two-way classification of 1000 persons who have been married at least once. They are classified by educational level.
assume the probability that a patient recovers from a rare disease is p0.75. assume 700 individuals are known to have
A job placement director claims that the average starting salary for nurses is 24,000.A sample of 10 nurses' salaries has a mean of 23, 450 and a standard deviation of 400. Is there enough evidence to reject the director's claim at 0.05 level of s..
suppose 1657 of 2006 registered voters sampled said they planned to vote for the republican candidate for president.
Conduct a hypothesis test to determine is the average weaning age in the U.S. is less than 12 months old. Use a 5% level of confidence.
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