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Wood shipping boxes are often recommended over cardboard shipping boxes because its strength tends to be higher, therefore, making it more durable and long-lasting. Based on data collected, Fedex determines that the breaking strength of most wooden shipping boxes are normally distributed with a mean of 500 pounds per square inch and a standard deviation of 20 pounds per square inch.
Based on the 68-95-99.7 Rule, about what percent of its wooden shipping boxes will have breaking strengths greater than 520 pounds per square inch
A. Approximately 16%
B. Approximately 1.3%
C. Approximately 20%
D. Approximately 32%
Bismuth (a) and cadmium (b) form a eutectic at 144°C and xa 5 0.45. They are also completely immiscible in the solid phase. The melting points for bismuth and cadmium are 271°C and 321°C, respectively. The enthalpies of fusion of these elements a..
Use the normal approximation to the binomial to approximate the probability that a) exactly 96 flights are on time. b) at least 96 flights are on time.
Determine the following:Mean, Median and Variance.
Would the correlation be greater, smaller, or about the same if you calculated the correlation between the weights of individual men and their heights (rounded to the nearest inch)? Explain your answer?
a coin is tossed three times. find the probability that the coin lands on tails then heads then
If the population standard deviation is σ.2 years, compute the standard error both with and without the finite population correction factor. What is the rationale for ignoring the finite population correction factor whenever n/N=.05?
What is the most significant aspect of the central limit theorem?- Under what conditions is the central limit theorem most useful in sampling to estimate the population mean?
Analysis of Variance (ANOVA) is used to test the equality of the means of three or more groups based on sample data. ANOVA is really a test of means even though it sounds like a test of variance.
The auto parts department of an automotive dealership sends out an average of 8 special orders daily. The number of special orders is assumed to follow a Poisson distribution.
Then test to see whether it considerably varies from 0 [use alpha = 5%]. Don't forget to identify the null and alternative hypotheses.
When water is poured on the top of a pile of rocks, it always trickles down to the rocks on the bottom. Similarly, when rich people make lots of money.
a producer of a cartain type of electronic component ships to suppliers in lots of twenty. suppose that 60 of all such
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