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A catering service offers 9 appetizers, 8main courses, and 12desserts. A banquet chairperson is to select 8 appetizers, 3main courses, and 4 desserts for a banquet. In how many ways can this be done?.
A marketing research analyst collects data for a random sample of 100 customers out of the 400 who purchased a particular "coupon special".
How would the General Counsel's decision in Part (b) change if the cost of selling the second suit were only $200,000? What if the cost were $900000?
Household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude? (Use (alpha) = 0.10.) z = ? P-value =?
Was there any difference in the nurses' preference in brand (α = 0.05)? Show all necessary components of a full hypothesis test, including a source table.
How large a sample must one take to be 90% confident that the estimate is within 0.05 of the true proportion of women over 55 who are widows?
A teller can process an average of 100 customers per hour, which also can be modeled by a Poisson distribution. If there is one teller on duty, determine:
Find a 99%. confidence interval for the difference between the average grades for the two courses. Assume the populations to be approximately normally distributed with equal variances.
What is your approach? Also, what about the other components of hypothesis testing such as confidence level?
Find the critical value to test the claim that all ages have purchase rates proportional to their driving rates.
A consumer watchdog agency selects a random sample of 40 taxpayers. What is the standard error of the mean? What is the likehood the sample mean is greater than 320 minutes?
a lottery commission offers four different lottery games to play three-number four-number five-number and five-number
Find out the probability that at least one of the CD's is defective?
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