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a) The lengths of pins produced by a machine follow a normal distribution with mean 2.54 cm and standard derivation 0.04 cm. A pin is rejected if its length is less than 2.44 cm or more than 2.60 cm. Find the percentage of pins that are accepted.
b) If it is decided that 2.5% of the pins are to be rejected because they are too long and 2.5% because they are too short, determine the new range of acceptable lengths.
Select the variable team salary and find the mean, median, and the standard deviation
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots. A partial ANOVA table
how many chocolate chip cookies will he need to sample to estimate the mean to within 2, what is a 99% confidence interval for the average number of chips per cookie?
Create the table for frequency distribution that has 16 class intervals of width 1 inch. Utilize 61.5 inches as lower limit of first interval and 62.5 as upper limit.
Based on the equation of the least-squares line, we use software to predict the average number of home runs hit per game per team for the year 2001. We obtain the following.
Compute the probability that debt for a randomly selected borrower with good credit is more than $18,000?
Your statistics instructor wants you to determine a confidence interval estimate for the mean test score for the next exam.
If level of significance ( α ) is 0.005 in two-tail test, how large is non rejection region under curve of the t distribution?
Compute the probability that randomly chosen student with a Master's degree majored in English or mathematics?
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
Pattern that most accurately represents mean, median and mode is?
Find the relative risk for moderate beer drinkers as compared to nondrinkers, finds the 95% confidence interval
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