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The mean return for a random sample of 33 mutual funds is 14.93 percent with a standard deviation of 9.57. Construct a 95% confidence interval for the population mean.
1. 11.53 to 18.32
2. 11.01 to 18.85
3. 14.82 to 15.04
4. 10.95 to 18.91
Compute the probability that student eats at fast food restaurant 2 or more times per week?
Calculate an 85% confidence interval for the population mean number of wolf pups per den at southwestern United States (US).
For the data shown below, prepare a x-bar chart. Note that the sample size is three. Record the values for the UCL, center line, and LCL. In addition, note any points that are out of control.
The mean and variance of the total amount of money that is collected from a car that crosses the bridge are:
If desired confidence level is 95 percent, suitable critical value is?
At significance levels of .05 and .01 test H 0 : the factors A and B are independent.
Statistical Hypothesis test for the given sample
Harry and Melissa Jacobson produce handcrafted furniture in a workshop on their farm. They have obtained a load of 600 board feet of birch from a neighbour and are preparation to produce round kitchen tables and ladder-back chairs during the next ..
The sample mean is 2.59 and the sample standard deviation is .66. Conduct the following test using 95% level of confidence.
If probability the first truck is available is= .75, probability the second truck is available is= .50, and probability both are available is= .30, determine the probability which neither truck is available?
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
Analyst computes production cost per unit in each order and averages these to get $50.
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