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In solar cells, the exposed surface area is the characteristic of interest. The tolerances on the length and width of the cells are 4 ±0.06 cm and 5± 0.09 cm, respectively.
Assuming these dimensions to be independent of each other and each normally distributed with a capability ratio of 1, what are the natural tolerance limits on surface area?
If the design calls for specifications on the surface area to be 20 ±0.4, what proportion of the cells will be unacceptable assuming normality?
What is the Cp index? If we did not know the distribution of surface area, how would a capability index be found?
A final exam in Math 157 is normally distributed and has a mean of 75 with a standard deviation of 12. If 36 students are randomly selected, find the probability that the mean of their test scores is greater than 70.
When conducting a hypothesis test, if z calculated is less than z critical, you should accept the null hypothesis?
Estimate the standard deviation of the x distribution. (Hint: Review the empirical rule and SD approximations). What is the probability that a healthy 10-week-old kitten will weigh less than 14 oz?
A union leader in the Maritime Workers' Union believed that workers at the Port of Brisbane were receiving a lower weekly salary than workers at Port Kembla. To determine whether this claim was valid
Conduct a two-sample test of means. A study by a bank compared the average savings of customers who were depositors for three years or less with those who had been depositors for more than three years.
Using the SPSS, calculate a simultaneous multiple regression with SES, age, and optimism as the independent variables and longevity as the dependent variable.
What is the difference between covalent bonds and ionic bonds as used in chemistry?
question which is relatively better a score of 85 on a psychology test or a score of 45 on an economics test? scores on
The negative binomial distribution is sometimes defined in a different way as the distribution of the number of failures that precede the kth success. If the kth success occurs on the xth trial, it must be preceded by x - k failures. Thus, find th..
Estimate the proportion of infants whose mothers experienced toxemia during pregnancy. Use 95% confidence level and doctors think that more than 20% of the infants their mothers experienced toxemia. Is that correct?
For which of the following situations is it appropriate to use a scatter diagram or scatter plot?
Refer to the alligator food choice example in Section 6.1.2. a. Using the model fit, estimate an odds ratio that describes the effect of length on primary food choice being either "invertebrate" or "other."
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