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The following is a series of annual sales (in millions of dollars) over an 11-year period (2000 to 2010): Year: 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Sales: 13.0 17.0 19.0 20.0 20.5 20.5 20.5 20.0 19.0 17.0 13.0 a. Construct a time-series plot. b. Does there appear to be any change in annual sales over time? Explain.
Please show me how to do this.
What is the null and alternative hypothesis? What is your final conclusion?
master card and other credit card issuers must by law print the annual percentage rate apr on their monthly statements.
a researcher knows that the population mean among college students taking social conformity test is neutral100. scores
you are the member of a commission that studies the gender inequalities. from a survery you obtain that on a random
If 1.5 million X-Games were sold over the holidays, determine an interval for the number of defectives in sales. 12,184 to 32,816.
the state fish and game division claims that 75 of the fish in homestead creek are rainbow trout. however the local
consider a random sample from a poission ditribution xipoiu.a show that yne-xnbarconverges stochastically to px0e-u.b
Hypertensive experimental (n=100) is 14%, placebo (n=100) is 22%. Generate a 95% Confidence interval for difference in proportions of patients with hypertension between groups.
SAT Math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 116. a) what percentage of SAT scores are between 399 and 631?
an insurance company believes that their policyholders fall into two demographic profiles a and b. the fraction of
Sample mean = $40,000, sample standard deviation =$1500 and n= 25. Assume that the population from which the sample is drawn is normally distributed.
which of the following statements are true if the value of the test statistic for a two-tailed z test is z -1.56?a.
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