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The prices of 12 randomly chosen homes in dollars (approximated to nearest thousand) in a growing county of Nairobi is as given below.
176 ,105, 133, 140, 305 ,215, 207 ,210, 173, 150, 78, 96
Find the lower and upper quartiles, median, and interquartile range
he Department of Motor Vehicles (DMV) can service customers at a rate of 20 per hour (or 1/3 per minute) when it comes to license renewals. The service time follows an exponential distribution.
(a) Find the estimates of ß0 and ß1. (b) Compute the standard error, the point estimate for s.
in order to be effective reflective highway signs must be picked up by the automobiles headlights. to do so at long
Construct two sets of body temperatures (in degrees Fahrenheit, such as 96.2°F), one for men and one for women.
Create a 90% confidence interval for the true average number of unoccupied seats per flight. interpret this interval in the context of the problem.
She wants to choose the passing grade such that the probability of passing a student who guesses on every question is less than 1/10. What score should she set as the lowest passing grade?
Exploratory Data Analysis. Is there an interaction between your two variables? If so, using post hoc tests, describe these differences.
a researcher performs a hypothesis test at the 0.05 level of significance. the null hypothesis is p 0.85and the
Develop a correlation matrix. What is the correlation between the dependent variable and each of the independent variables? Interpret their managerial implications
A service counter manager wishes to ensure that an average of 16 seconds to serve a customer. In order to analyse the efficiency of the service process
Confidence intervals, again. Several factors are involved in the creation of a confidence interval. Among them are the sample size, the level of confidence.
At the 0.05 level, is there enough evidence to support the director's claim? Find the value of the test statistic. Round your answer to two decimal places
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