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1. One characteristic of billiard balls is their elasticity - the bounce they get when striking one another. A manufacturer of billiard balls is testing three additives to the basic plastic. A partial ANOVA table is
The F statistic for the ANOVA is F = 51.86. The P-value for the test isA. p > 0.01.B. 0.001 < p < 0.01.C. p < 0.001.
2. One characteristic of billiard balls is their elasticity - the bounce they get when striking one another. A manufacturer of billiard balls is testing three additives to the basic plastic.
Minitab computes pairwise confidence intervals for the difference in the means as
Tukey's pairwise comparisons
What conclusion do we make about the three group means?A. All the means are the same.B. All the means are different.C. Groups 0 and 2 are similar; Group 1 is different.
The useful life of an electrical component is exponentially distributed with a mean of 2500 hours. a. What is the probability the circuit will last more than 3,000 hours.
Test whether the mean weight is greater than 16 ounces with P-value approach.
Elucidate this data use an appropriate statistical test to explain whether the population mean TV "on" time has declined in the past decade.
At the .05 significance level, can we conclude that there is a difference in their mean times?
A design for 2 treatments has p pairs of blocks. Each block has three plots. In each pair one block has two plots with A and one with B, and the other has two plots with B and a single plot with A.
Over the past few years, banks have strongly promoted online banking and the paying of bills online. In 2003, about 50% of internet users paid bills online.
A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding the mean monthly mileage
The mean to be $19 and the standard deviation to be 6.8. Find the best point estimate of the population mean and the 95% confidence interval of the population mean.
What IQ score should one have in order to be eligible for Mensa?
In February 2002, the Argentine peso lost 70% of its value compared to the United States dollar. This devaluation drastically raised the price of imported products.
A snack company distributes chips in bags labeled 6 ounces. The local Bureau of Weights and Measures randomly selects 50 bags of chips and obtains a sample mean of 5.9 ounces.
The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)
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