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Q1) Manager of two resort properties was interested in any significant difference in eagerness of guests to return to two properties. Sample of 227 guests at "The Beachcomber" resulted in 163 who said that they would select that property again. Sample of 262 guests at "The Windsurfer" resulted in 154 who said they would select that property again. Using 5% level of significance, is there any difference in proportion of guests who would select the two resorts? What is your conclusion?
Use the study to estimate the risk of an air bag fatality on a child seated on the front passenger seat.
Which of the following(s) can be considered (a) variable(s)?
For the 20 test scores shown, find the percentile rank for a score of 86.
Find out the Optimum solution using the given data. Consider the following linear programming problem. Illustrate what is the optimum solution to this problem?
Hours worked is important predictor of amount of sales.
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments.
Whenever the calculated value of t is equal to or greater than the tabled value of t, for a given number of degrees of freedom, then
what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?
Probability based on normal distribution. Suppose among X has a normal distribution, and find the indicated probability.
We assume that we have selected two independent random samples from populations having proportions p 1 and p 2 and that p-hat 1 = 800/1000 and p-hat 2 = 950/1000
Problems on Sampling Variability and Standard Error and Confidence Intervals
Assume you choose 20 houses at random. On average, how many houses of twenty would you expect to have DVD? Determine standard deviation of number of houses with DVD?
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