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The symphony sells raffle tickets each year to raise money. Assume they sell 2000 tickets and the tickets cost $100 each. The top prize is a $50,000 car and the second prize is a $5,000 gift certificate from jewelry store and the third prize is a $1,000 shopping spree at an area mall. Find the expected value of buying a raffle ticket.
Determine the probability that no female are hired. Determine the mean and standard deviation of X.
Which statement is true for a statistical study?
What does the standard deviation mean? Interpret the standard deviation relative to the average or mean?
At 0.05 level of significance, is there evidence of significant relationship between age group and where people mainly get their news? If so, describe the relationship.
What is the best predicted IQ of the wife, given that the husband has an IQ of 105 ? Use a significance level of 0.05.
Test whether the mean weight is less than 10 pounds. Use P-value approach.
This table gives three measurements of 10 samples made in a production run. Use statistical process control method to solve problem.
It has been estimated that 30% of all farms are family-owned. In a sample of 12 farms, what is the probability that exactly three farms are family owned?
Test for single mean - What do you conclude - Compute z and P
What would be the critical value under the null hypothesis if the size of your test were 5%?
What is the probability that the project will be completed in 17 months or less?
For a population with a mean of μ = 60 and a standard deviation of σ = 24, find the Z score corresponding to each of the following samples.
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