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Cold Stone Creamery has recorded demand for the particular flavor of ice cream during first seven days of July. Results are as follows:
July Sales1 562 643 634 565 686 597 64
Forecast the sales for 8th day of July using 5-day moving average.
At 0.05 level of significance, is there evidence of noteworthy difference in variation in sales among different aisle locations?
In a random sample of 800 customers selected for a short phone interview, 96 have stated that they have received their shipments late. The company's claim is that the percentage of late shipments is at or below 10%.
What is the difference between calculating a confidence interval on the mean vs calculating the confidence interval on a proportion?
The estimated age-adjusted percent of persons 18 years of age and over who smoke cigarettes are shown below for females and males for selected years.
R.C. Geary wrote some 70 years ago that "Normality is a myth. There never was, is, nor will there ever be a Normal distribution".
Assume that a hand of 12 cards is dealt from a normal deck of 52 playing cards. What is the probability that of the 12 cards, 3 will be diamonds, 3 will be clubs, 3 will be spades, and 3 will be hearts.
A spokesman for a popular television game show claims that contestants on the show win an average of $1200. In a random sample, 35 contestants were questioned on the amount of money they had won in order to test the hypothesis.
I'm having difficulty understanding and showing in layman terms or simple terms an example and comparison between the ANOVA test, Kruskal-Wallis test, and T-Test Statisitc.
We wish to create this mean value interval for selling price with 95% confidence level. Find out the best point estimate (average) for selling price. Critical t-value(s) associated with 95% confidence level.
Develop a regression model for predicting the difference in the asking price and selling price.
According to an early CDC study of 21 patients infected with the swine flu, the average incubation period was 7 days with a sample standard deviation of 4.5 days.
Find out how to minimize cost of meeting demands in Houston and Tampa.
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