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An important feature of golf cart batteries is the number of minutes they will perform before needing to be recharged. A certain manufacturer advertises batteries that will run, under a 75 amp discharge test, for an average of 125 minutes with a standard deviation of 5 minutes.
a. Find an interval that contains at least 90% of the performance periods for batteries of this type.
b. Would you expect many batteries to die out in less than 100 minutes? Why?
2) From a box containing five white and four red balls, two balls are selected at random without replacement. Find the probabilities of the following events.
a. Exactly one white ball is selected.
b. At least one white ball is selected.
c. Two white balls are selected, given that at least one white ball is selected.
Use the Chi-square test of independence with a .01 level of significance to determine whether appeal is independent from type.
Absolutely lost on how to determine what is being asked in below problem. Need to calculate the covariance and correlation between X and Y
Generate a scatterplot for Occupancy Rate (Y) vs. Rent per Sq. Ft. (X). Send this graph to me via email. State the equation of the best fit line. State and interpret the values of bo and b1.
Write three quadratic equations, with a, b, and c (coefficients of x2, x, and the constant) as:
predicting winning percentage for the nflthe national football league nfl records a variety of performance data for
Given the EOQ, what is the average inventory? What is the annual inventory holding cost and in minimizing cost, how many orders would be made each year? What would be the annual ordering cost
Test the hypothesis that no difference exists between the groups at α = .05 and perform and report all related tests and statistics.
Flu cases this past fly season in the Central City school system were about 15 per week. For the entire state, the weekly average is 16 and the standard deviation, 2.35. Are the kids in Central City as sick as the kids throughout the state?
Find the probability that among 8 randomly selected graduates, at least one finds a job in his or her chosen field within a year of graduating.
SPSS OUTPUT INSTRUCTIONS
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
We assume that the population is approximately normally distributed. Find the confidence interval: for a confidence level of 95%:
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