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A recent study conducted by the state government attempts to determine whether the voting public supports a further increase in cigarette taxes to help the public schools. The opinion poll recently sampled 1000 voting age citizens. 683 of the sampled citizens were in favor of an increase in taxes. The state government would like to decide if there is enough evidence to establish whether the proportion of citizens supporting an increase in cigarette taxes is significantly greater than 65%.
What is the p-value?
packets arrive at a router at the rate of 1000 packets per second. in an experiment the number of arriving packets are
Suppose that a box contains one blue card and random cards, which are labeled A, B, C, and D. Suppose also that two of these five cards
OPIM433-1 PROJECT - FORECASTING TECHNIQUES. Draw the monthly sales data in a graph and explain which forecasting method do you recommend. Calculate the forecasting of the sales volume for the periods 12 and 13 when necessary using the following metho..
What is the probability that, on the next day, the speed of the first vehicle passing the observation point between 11am to 12n is less than 65 mph?
the pizza shop wanted to determine what proportion of its customers ordered only cheese pizza. out of the 80 customers
According to a report in New Scientist (Vine, 21 January 1995), the UK Cochrane Centre in Oxford is launching the Cochrane Database of Systematic Reviews.
a. What would be the predicted score for a person scoring 6 on X? b. If someone's predicted score was 14, what was this person's score on X?
Do this year's data show a significantly different average response time? What null and alternative hypotheses should you test to answer this question?
An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of two emails per hour. Suppose the arrival of these emails is approximated by the Poisson distribution.
Assume that the number of new visitors to a website in one hour is distributed as a Poisson variable. The mean number of new visitors to the website is 4.0 per hour. What is the probability that in any given hour
One of the statements in the news story was "a margin of error of plus or minus three percentage points means that the 43 percent of Americans.
How many of the households should be surveyed? Explain any assumptions you used in obtaining your recommended sample size.
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