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A random variable X is normally distributed with µ = 60. Convert the value of X to a Z score, if the standard deviation is as given.X = 68 sd = 8
and if the standard deviation is as follows:X = 72 sd = 3
and if the standard deviation is as follows:X = 66 sd = 4
Question #2 (three part question)
a) Determine the area under the standard normal curve between z = 0 and z = 3.
b) Determine the area under the standard normal curve to the right of z = 1.
c) Determine the area under the stanard normal curve to the left of z = 1.5
Assess the model fit for the multiple linear regression model using appropriate statistics and graphics.
Complete hypothesis test using a 5% level for risk with directional research hypothesis.
Developing project network using AOA that determines completion times.
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Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance and determine the p-value and interpret its meaning.
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 8 hours. A random sample of four students was taken in order to estimate the mean study time for the population of all students.
Calculate the test statistic. Determine the p-value of the test-statistic.
Findout the consumption level separating the bottom 45% to the top 55%. The September energy consumption levels for single family homes are found to the normally distributed with a mean
When we carry out a chi-square test of independence, the expected frequencies are based upon the Null hypothesis - true or false.
Calculate the average of deposits per bank for FDIC- inured institutions during both time periods and describe the relationship between the two averages. Provide a reason for the difference.
Finding the Equation of the Regression Line and Making Predictions. Find the regression equation,
The sample mean of the accounts is found to be y-bar = $94.22, and the sample variance is equal to $455.21. Estimate mu and place a bound on the error of estimation.
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