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In 2017, 77% of the of the population of Facebook users had a positive opinion of the service.
a) What is the standard error of the sample proportion for a sample of 100 facebook users?
b) What is the probability that a random sample of facebook users wukk gave a sample proportion within 0.03 (=-3%) of the population proportion?
Marketing and Consumer Behavior A recent study suggests that Canadians are getting richer but they are among the most indebted people in the world.
54% of men consider themselves professional baseball fans. You randomly select 10 men and ask if he considers himself a fan. Find the probability that the number who consider themselves professional fans is
The smallest quantity in a cell is minus 35, but two different cells with minus signs have 35 units in them. What problem will this cause and how should this difficulty be resolved?
A professor records the time (in minutes) that it takes 16 students to complete an exam. Compute the SS, the variance, and the standard deviation.
an instructor computed a least squares regression line to predict final course percentage based on exam 1. she got the
A tossed a coin into the air 7 times to test whether the coin is biased. The observed outcome was HHHTHHH. Consider the following statements:
Using the data about political contributions and corporate profits, and your work from Exercise 16.48, answer the following questions:
Perform pair wise comparisons of the treatment means by computing a Tukey simultaneous 95 percent confidence interval for each of the pair wise differences μ1 - μ2, μ2 - μ3, and μ2 - μ3. Which type of program content results in the worst mean bran..
The weights of canned hams processed at Henline Ham Company follow the normal distribution, with a mean of 9.20 pounds and a standard deviation of .25 pounds. The label weight is given as 9.00 pounds
A manufacturer of cheese has a number of production facilities across the country. One product that is produced is used by a major pizza chain, and it is critical that there is consistency in the cheese made by individual plants.
the recently opened grand hyatt wailea resort and spa on maui cost 600 million about 800000 per room to build. daily
If z is drawn from the standard normal distribution, find the matching statements, using Excel. (Hint: P(z
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