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Determine the upper and lower control limits for ?- (This Symbol Is Supposed to be an x not an a) and R-charts for the width of a chair seat when sample grand mean (based on 30 samples of 6 observations each) is 27 inches and the average range is 0.35 inches.
Please use Excel.
Create the corresponding decision tree and make recommendations.
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level. State the decision rule.
If the top 15% of the test scores are usually good enough for admission to law school, find the cut off score for gaining admission.
Suppose four heads appeared face up on four tosses of a coin. what is the probability that a head will appear face up in the next toss of the coin?
In which category is ANOVA properly classified?
Scores on a test have a mean of 73 and Q3 is 81. The scores have a distribution that is approximately normal. Find P90.
A permutation resample for a two-sample test
If the pilot plant fails, Rob feels the chance of the full-scale facility succeeding is only 20%. The probability that the pilot plant will succeed is estimated at 0.6. Structure this problem with a decision tree and advise Rob what to do.
A shock can cause the failure of component 1 alone with probability p, component 2 alone with probability q, both components with probability r, or have no effects with probability 1-p-q-r. Suppose no repairs are possible and the system fails when..
What proportion of time will it take clean-up crew 56 or more hours for cleaning plant? Define the lower and upper limits of interval.
Determine percentage of employees has 5 dependents? Of all employees which have at least one dependent, determine percentage has more than one?
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p- value.
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