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A division-wide aptitude test in mathematics was conducted to 1000 pupils. course hero the mean of the test is 58 and standard deviations is 12.
a) What is the minimum score to belong to the upper 10% of the group?
b) What is the score that divides the distribution into two such that 75% of the cases is below it?
c) Estimate the range of scores that will include the middle 50% of the distribution. ____________ to _____________
Two impendent samples of signs 9 and 8 gave the sum of squares of deviation from their respective means as 160 and 91 can the samples be regarded as drawn from the normal population with equal variance
In many fast food restaurants, there is a strong correlation between a menu item's fat content (measured in grams) and its calorie content. We want to investigate this relationship.
The director for training at a company that manufactures electronic equipment is interested in determining whether different training methods have an effect on the productivity of assembly line employees.
Determine whether there is a significant relationship between sales and the two independent variables (radio advertising and newspaper advertising) at the 0.05 level of significance. Interpret the meaning of the p-value.
What should the minimum passing score be set at to admit only the top 78%?
If these rates continue for long periods of time, how many years will it take for Mexico to catch up to the living standard of America?
Starbucks wants to survey its employees regarding employee satisfaction in Chicago.
a) Identify and explain the shadow prices for each of the resource constraints. b) Which of the resource constraints profit the most and why?
Convert the following proportions to percentages, preserving the accuracy in the proportion:
The ?rm also believes that rating values vary from policyholder to policyholder, with the probability distribution of the value of a new policyholder being uniformly distributed over (0, 1). Given that a policyholder has made n claims in his or he..
Linear programming problems. Computethe following linear programming problem. Among which of the following points (X,Y) is feasible.
Event A occurs with probability 0.2. Event B occurs with probability 0.3. Event C occurs with probability 0.4. If A, B, and C are disjoint, then
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