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Historical data indicates that only 20% of cable customers are willing to switch companies. If a binomial process is assumed, then in a sample of 20 cable customers, what is the probability that no more than three customers would be willing to switch their cable?
Make any necessary corrections to your work based on facilitator's feedback and write: A paragraph describing the dependent variables of interest and children's anxiety as measured by the RCMAS.
In how many ways can the sales representatives be chosen (a) if there are no restrictions and (b) selection must include one sales rep from each region.
A new car is designed to run a mean of at least 50 000 kilometers before its first tune-up. Tests with 30 cars show a sample mean of 49 500 kilometers and a sample standard deviation of 1000 kilometers.
The standard deviations s1 and s2 can be used when Ó1 and Ó2 are unknown and you believe that the underlying distribution is normal. Then, you would use s1 and s2 with the t-test for hypothesis testing.
At a certain pizza parlor, 45% of the customer's order a pizza containing onions, 38% of the customer's order a pizza containing sausage, and 79% order a pizza containing onions or sausage
What happens to the boundaries for the critical regions?
how would you characterize the largest 5 of all concentration values. in other wods at what level of concentration cu
How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis?
consider a political discussion group consisting of 4 democrats 7 republicans and 9 independents. suppose that two
Assume that p-value was 0.07, would you reject null hypothesis of equal mean rates for a Type- I error rate of 5%? (Circle one).
The expected value of the number of simple random samples of size 20 that must be drawn until (and including) the first sample that contains at least one voter who is neither a Democrat nor a Republican is?
what is the probablity that a person selected at random from this hwas data set is horter than 65 or taller than
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