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A regional director responsible for business development in the state of pennsylvania is cocerned about the number of small business failures. If the mean of small businsses failures per month is 10, what is the probability that exactly four small businesses will fail during a given month? Assume that the probablity of a failure is any month is independent of failures in any other month.
What is the equation for least squares line? Calculate the coefficient of determination.
Using symbols state hypotheses (H 0 and H 1 ) for two-tailed test. Sketch suitable distribution and locate critical region for a = 0.05.
Find out the least-squares regression line and interpret its slope.
Estimate the probability the store will gross over $850 a) Fewer than 5 out of 10 business days.
Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?
At 95% confidence, test to determine if more than 21% of the population will like the new soft drink.
Determine the probability that no female are hired. Determine the mean and standard deviation of X.
Would you play this game if you wanted to make money? What do we expert the value of the results of the game to be?
What is the expected value and variance for the number of contacts in eight attempts?
Henry performed a two-tailed test for an experiment in which N = 24. He could not find his table of t critical values, but he remembered the tcv at df = 13. He decided to complete his obt.with this tcv. Is he more likely to make a type I or II err..
Using a 5% level of significance, can we say that, generally there is important difference between satisfaction levels of mid country residents and coastal residents?
In testing equality of two means below, determine the test statistic? (Use the equal variances formula)
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