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Critically the difference between Paramaeter and Statistics
Critically discuss the concept of operationalize?
What are focus groups
What is the meaning of lodging double variable, validity & liability
Explain Normal Distribution
What is mean, median mode
What is range & dispersion
What the independent & dependent variable
Explain exploration descriptive casuable research
What is the standard error of the difference between the means?
A manufacturing process makes items whose weights are normally distributed. It is known that 22.57% of all the items made weigh between 100 grams up to mean and 49.18% weigh from the mean up to 190 grams. Find out the standard deviation.
If we fit the least-squares line to the 12 data points (one for each month) we obtain the following results from a software package. Notice that temperature is taken as the explanatory variable and crawling age as the response.
What is the possibility that for a arbitrarily selected customer the service time could exceed 3 minutes?
A doctor believes that the standard deviation of systolic blood pressure is 450. A random sample of 24 patients found a standard deviation of 520. Assume the variable is normally distributed and a = 0.01. What are the critical values?
Draw suitable distribution curve indicating position of the TS and CV.
At the 5% level of significance test whether the bottling process is carried out accurately or whether the filling machinery needs calibration. Use both the critical and the p-value approaches.
Each of four tasters picks one coffee anyway (not knowing which is which, because the coffee is in identical cups). What is the probability that a) All four tasters choose Tasty Bean?
Calculate the population mean and population standard deviation.
What decision should be made regarding the null hypothesis?
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
The GMAT scores from a sample of 50 applicants to an MBA program indicate that none of the applicants scored below 450. A frequency distribution was formed by choosing class intervals 450 to 499, 500 to 549, and so on, with the last class having a..
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