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A single strain gage has a nominal resistance of 120 ohm. For a quarter bridge with 120 ohm fixed resistors, the voltage output is 1.658 mV with a strain of 1000- µstrain for a supply voltage of 3V. Compute gage factor?
determine the null and alternative hypotheses. the percentage of viewers tuned to fox news is equal to
At the .05 significance level, can we conclude that the guideline is still reasonable?
The weight for a group of 18 month-0ld girls are normally distributed with a mean of 24.4 pounds and a standard deviation of 2.6 pounds. Use the table to find the percentage of 18 month-old girls who weigh more than 27.8 pounds.
If a null hypothesis is rejected at a significance level of .01, it will ______ be rejected at a significance level of .05
The mean life of a battery used in a digital clock is 305 days. The lives of the battery follow normal distribution. The battery was recently modified to last longer. A sample of 20 of the modified batteries had a mean life of 311 days with a stan..
Do the confidence interval limits contain 98.6F? What does the sample suggest about the use of 98.6F as the mean body temp.
If the server has 40 customers in one shift, what is the probability that her total tips are less than $250? (Assume that these 40 customers represent a simple random sample).
How many ships must be included in the sample if the CEO wants the error to be within 0.02 and a confidence level of 95% if: there is no information available that could be used as an estimate of the population proportion?
What is the probability that exactly six application forms have been falsified? Would you expect this probability to be small or large? Explain.
consider the following summary data on the modulus of elasticity times106 psi for lumber of three different grades in
Computing probability values using normal distribution - How many students earned between $20,000 and $40,000
a) What statistical test should be used to analyze these data? b) Identify H0 and Ha for this study. c) Conduct the appropriate analysis d) Should H0 be rejected? What should the researcher conclude?
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