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A certain map is drawn so that a distance of 0.5 inch on the map represents 12.5 miles of actual distance. If the distance between two towns is 4.5 inches on the map, what is the actual distance, in miles, between the two towns?
Would you conclude that your data set is approximately normal? If so, what percentage of your data values lie:
What was the purpose of calculating a Cohen's d? When is a Cohen's d calculated? Interpret d=.90. What does it mean in this example?
Standard deviation of the population is 9 hours. Give the null and alternative hypotheses. Compute the test and p-value. Use a=0.01 to make your conclusion based on the p-value.
what is the sample space of all possible outcomes? Are the outcomes equally likely?
Probability using normal distribution.Sampling distributions. Given a normal distribution with μ = 50 and standard deviation σ = 9, if a sample of n = 100 is selected.
Which of the following methods could lead to stronger evidence for the outcome of a nonparametric test?
What method is best suited for such a survey? Draw the sample using the random number table and bring out the rationale of the procedure.
Is there a relationship between sales and newspaper advertising? Support your answer?
The confidence interval must be less than 5 percentage points i.e. the confidence interval should extend at most 2.5 percentage points above and below the sample proportion?
Compute a 95% confidence interval for the population mean, based on the sample 25, 27, 23, 24, 25, 24 and 59. Change the number from 59 to 24 and recalculate the confidence interval.
A health care analyst would like to know that if the duration of a given eye surgical procedure has a normal distribution with a mean of 240 minutes and a standard deviation of 40 minutes
Compute the mean number and median number of apples in a bag.
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