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Suppose that you are trying to estimate average IQ and its standard deviation. You know that IQs are distributed normally, and so you choose 6 random people and test their IQs. You obtain the values 97, 103, 91, 117, 126, 108. Write the MLE function of two variables based on this data.
Is there a difference in the extent of wound healing by treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance.
Does the confidence interval contain the value of 35 mm, which is believed to be the standard deviation of sitting heights of women?
If a claim is randomly selected, what is the probability the person was under 25 or male?
Several factors influence the value obtained for a t statistic. Some factors affect the numerator of the t statistic and others influence the size of estimated standard error in the denominator.
assignment-f 7.357r .83 df 4df 3203df 98 p gt .05 p lt .05 p lt .01question 1. what statistical
the local bakery bakes more than a thousand 1-pound loaves of bread daily and the weights of these loaves vary. the
a chemical engineer wants to fit a straight line to the data found observing the tensile strength y of 10 test pieces
fitting of simple linear equation.a suburban drug store manager thinks that its daily sales are related to the number
Standard deviation of 3.2 days. If a nursery plants 100,000 of these seeds, how many will germinate in less than 20 days?
Not take SRS of 25 students who took test. What are the mean and standard deviation of sample mean score xbar of these 25 students?
1. what information does calculating standard deviation provide? how is the z-score related to standard deviation?2.
he life expectancy of a brand of hair dryer is normally distributed wiht a mean of four years and a standard deviation of 8 months.
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