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Some retail industry experts speculate that 25% of new customers who make purchases are generated from social media connections; furthermore, 30% of these new customers who make purchases join corporate loyalty and rewards programs. Of the remaining new customers who make purchases but weren't from social media connections, 60% join the loyalty and rewards programs.
If a new customer who made purchases joined the loyalty and rewards program, what was the chance the customer had come from social media connections?
If a new customer who made purchases joined the loyalty and rewards program, what was the chance the customer had not come from social media connections?
If a new customer who made purchases had not joined the loyalty and rewards program, what was the chance the customer had come from social media connections?
If a new customer who made purchases had not joined the loyalty and rewards program, what was the chance the customer had not come from social media connections?
A bag contains 5 blue balls and 8 purple balls. If 3 balls are chosen randomly and without replacement, form the bag. Let x be the number of blue balls obtained. Then x has a distribution.
questiona soft drink manufacturer is using a winning cap as a sales promotion. the purchaser can get a prize if they
question 1 a sample of the various prices for a particular product has been conducted in 16 stores which were selected
Calculate the arithmetic mean age of the uninsured senior citizens to the nearest hundredth of a year. Identify the median age of the uninsured senior citizens
Suppose you want to estimate the sample size for a multiple correlation analysis. There are five predictors in your study.
In a random sample of 53 concrete specimens, the average porosity (in percent) was 21.6 and the standard deviation was 3.2. a) Find a 90% confidence interval for the mean porosity of specimens of this type of concrete.
a machine has 9 identical components that function independently. the probability that a component will fail is 0.2.
Evaluate z statistic for the Wilcoxon rank sum test, standard deviation for the Wilcoxon rank sum test and P-value for the Wilcoxon rank sum test
A survey of 120 high school students shows that 39 of them work over 20 hours per week during the school year. Does it demonstrate the conjecture that more than 25% of the high school students work over 20 hours per week during the school year?
A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years. Construct a 95% confidence level.
Standard deviation of 0.04135 (4.135%). Treating the next 12 months as a random sample, what is the probability that the mean rate of return will be positive?
two boxes a and b. box a contains 4 red balls and 5 white balls box b contains 2 red balls and 3 white balls. an
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