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1. x - 23 =12 Solve for x
2. 2z + 12 = 5z - 9 Solve for z
3. 1/3 + 3/8 = ?
4. 2/3 -1/ 4 = ?
5. Solve for x: ¼(x-2) - ½(x-4)
6. (4x)(2x) = ?
7. Write in interval notation the real numbers greater than or equal to 3 and less than 9.
8. 2a(4a - 5) - 3a(2a - 5) Simplify
9. The approximate distance in feet that a baseball will travel when hit at an angle of 45 degrees is given by the expressionv2 /32 where v is the initial velocity in ft/sec.
If the ball had an initial velocity of 120 ft/sec, how far will it travel?
10. Translate the verbal expression into an algebraic expression: a cubed minuis b cubed.
In an article in the Journal of Management, Morris, Avila and Allen studied innovation by surveying firms to find the number of new products introduced by the firms.
significance level α = 0.01 and a degree of freedom = 11. In this situation, the null hypothesis that the observed distribution is the same as the expected distribution is?
Using any present or past job related data, perform an ANOVA in either Excel or MegaStat. Write your null and alternate hypothesis. Post your ANOVA table. Interpret the results.
Determine a 95% confidence interval for mean amount spent by all Internet shoppers.
The following data represent scores of 50 students in the applied business statistics test. Prepare the frequency distribution table and the frequency histogram for this data set.
Determine a 95% confidence interval for true time battery pack can function before having to be recharged.
It is better to use the median rather than the mean for a distribution when:
Suppose a reading between 30 and 40 is called very interesting from an archaeological point of view. Let us say you take readings at n=12 sites chosen at random.
In a field study of mating behaviour in the Mormon cricket, a biologist noted that some females mated successfully while others were rejected by the males before coupling was complete.
Is the dependent variable discrete or continuous? interval, or ratio) is used to measure the dependent variable?
Can you think of other cases where the expected probabilities do not quite agree with the empirical values based on relative frequency?
Comparison of paired and unpaired samples test - Identify which of the two tests (Independent samples and Paired samples) test is the preferred test and justify your choice.
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