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A fair coin is tossed 20 times and x=6 heads are observed. Let p=P(head). A test of Ho:p=.5 versus Ha: p<.05 is to be performed based upon the results of the 20 tosses. What is the p-value for this hypothesis test? Answer is .0577.
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.
A study of 49 business graduates reported 42 students listed stats 100 as their least favorite class. what would be the 99.8% confidence interval of the proportion of business students who hate, hate, hate business?
Suppose that 255 such companies are selected independently and at random. (a) What is the probability that 186 companies in the sample electronically monitor their employees?
For a discrete probability function that is given as: a. What is the expected value E(Y)? b. What is the standard deviation (σ) of the random variable Y?
No information is available about its value. How large a sample size is needed to estimate it to within 0.15 with 99% confidence?
Suppose that during a basketball practice. Joe tries 3 shots from the free throw line; imagine further that he has a probability equal to 0.6 of making each shot and that the attempts are independent. Let 'X' be the number of baskets he makes in t..
Based on the numbers presented, what do you think of the discrimination claim?
What is the appropriate procedure to test a significant difference in means between the two groups? Use the critical -value method.
If you draw a ball, record the color then draw a second without replacing the first ball, what is the probability of choosing two green balls?
1. why are z scores most often written with two decimal places?2. what is the z score for a x value one standard
q1. length of pregnanciesthe length of human pregnancies from conception to birth varies according to a distribution
Now we are going to talk about continuous probability distributions. In a continuous probability distribution, the variable can have a value within a range.
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