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Find the required probability for the normal distribution.
500 people were surveyed and asked to rate NYC subway system with the rating scale of 1 (lowest to 5 (highest). The average rating was 3.0, with a standard deviation of 0.5.
A: What is the proportion of people surveyed that rated the subway system from 3 to 4
B: What is the proportion of people surveyed rated the Subway System from 1 to 3
Find the probability that an eligible voter selected at random will have the following characteristics.
A recent census of a small town in Michigan showed that 60% of the residents are male, 20% have college degrees, and 15% are both male and college graduates.
Using Analysis of Variance (ANOVA) test at 5% level if there are important differences in mean sales calls made across the three branches.
For a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months.
A fair coin was flipped three times and landed heads three times. What is the probability of a head on the next toss?
determine if the improvement is of practical significance one should. Crop researchers plant 100 plots with a new variety of corn. The average yield for these plots is x' = 130 bushels per acre
Design a Linear programming problem for the flair Furniture Company and find the combination of tables and chairs that the company must produce to maximize profits.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
Determine the probability that she lives in an all electric home?
What is the probability that a cereal would both high calorie and high fiber? In other words, what is P (high calorie and high fiber)?
What was the success probability of each O-ring?
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