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A market survey was conducted to estimate the proportion of homemakers who would recognize the brand name of a cleanser based on the shape and color of the container. Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name.
Compute the standard error of the proportion.
Describe the given data show a seasonal effect using moving average method. Describe the data which show a seasonal effect.
Explain why the t distribution is used as a part of the confidence interval.
At the 0.05 level of significance, is there sufficient reason to believe that the integers are not being generated uniformly?
The budgeting process for a Midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Since the actual expenses are unknown, the following respective probabilities are assigned: .3, .2, .25..
At the 0.10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
Which of following statements would be right concerning a twotail test at 0.05 level of significance? We can conclude that average cottage cheese consumption in America is at least 0.705 pound more or less than 2.75 pounds per person per year.
Determine point estimate of population mean? By using 90% confidence, determine the margin of error?
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
A small New England college has a total of 400 students.The Math SAT is required for admission, and the mean score of all 400 students is 620. The population standard deviation is found to be 60. The formula for a 95% confidence interval yields th..
Point out your final decision concerning hypothesis test and compute p-value for test.
Determine the percent of the days is the price between $38.00 and $40.00?
How much would ING be willing to pay if the General Counsel could arrange for an absolutely reliable mock trial?
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