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Q1) What do you mean by "Probability"? Create a hypothetical contingency table of data by using grid of three rows and four columns (label = rows and columns as you see fit. For instance, rows might be age, and columns might be income level). Insert hypothetical values for each cell in table. Develop 4 probability questions by using table that you as the instructor of statistics might ask class of students for test in probability.
Assume 1.5% of antennas on new Nokia cell phones are imperfect. For random sample of 200 antennas, determine the probability that:
a) None of the antennas is defective
b) Three or more of the antennas are defective.
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
Solve different inventory control problems using an appropriate OR method.
We want to estimate the population mean within 5, with a 99% confidence level. The population std dev is estimated to be 15. How large is the required sample size?
In what height interval must the company expect to determine middle 70% of kindergarteners?
For a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months.
Calculate the suitable mean response time from both proposed locations and find out which proposed site must be selected for the new emergency facility.
To select a _________ sample, an intact group of subjects that represent the population is selected.
Evaluate the mean wait time and throughput rate
A bank wants to get new customers for their credit card. They try two different approaches in their marketing campaign. The first promises a "cash back" reward; the second promises low interest rates. A sample of 500 people are mailed the first br..
Compute lower and upper quartiles of log10-balances? Determine 95% range of the balances in $s? Express in English what the two boundaries mean.
What is the approximate estimated bootstrap standard error of the median, What is the approximate bias of the median estimated from bootstrapping - What is the bootstrap t confidence interval for the median
Find the area under the normal distribution curve to the right of z = -1.03.
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