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Switching banks after a merger. Banks that merge with others to form ‘mega-banks' sometimes leave customers dissatisfied with impersonal service. A poll by the Gallup Organization found 20% of retail customers switched banks after their banks merged with another (Bank Marketing, Feb. 2009). One year after the acquisition of First Fidelity by First Union, a random sample of 25 retail customers who had banked with First Fidelity were questioned. Let x be the number of those customers who switched their business from First Union to a different bank.
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?
A repairable system consists of three non-identical components A, B,C , all of which must work for system success. When one component fails, no further component failures can occur. Construct the relevant state space diagram and hence evaluate gen..
a. What is the probability that A wins the championship in just five games? b. What is the probability that it takes just five games to obtain a champion? c. If a draw earns a half-point for each player, describe how you would perform a simulation t..
The weights of the 100 boys in the Boy Scout Troop 829 are normally distributed with a mean of 170 pounds and a standard deviation of 5 pounds.
what will be the standard deviation of the share price if it is assumed that there is a 95% probability that the value will be at least 64?
Obtaining uniform random numbers as instructed at the beginning of the Problems section, generate four random observations from an exponential distribution with mean = 1.
She contends that the theory is incorrect because over the past two years she has raised the price of her catered meals and yet has seen a brisk increase in sales. How would you respond to Haslina?
Literary criticism implies close reading more than making an evaluative judgment about a work of literature. Look up the term online. In your own words, what will you do to analyze textual material? What was your initial response to the poem you a..
Standard deviation of 10 pounds.. Find the probability, P(W
what is the probability of obtaining two tails in a row when flipping a
Sample mean varies from population mean of 10 pounds at 5 percent level of significance using two-tailed test. Compute test statistic for the sample data.
For these data, construct a line graph that shows both net sales and expenditures for advertising/product promotion over time. Some would suggest that increases in advertis- ing should be accompanied by increases in sales. Does your line graph sup..
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