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a) How many sequences of zeros and ones of length 7 contain exactly 4 ones and 3 zeros?
b) If you roll 7 dice, is the chance of getting exactly 4 sixes?
A standard deviation of 25 days. If 100 women are randomly selected, find the probability that they have a mean pregnancy between 266 days and 268days.
Which of the following would be an appropriate alternative hypothesis?
Evaluate 2-month moving average and Exponential smoothing by MAD.
The owner hypothesizes that his patrons have no preference for a particular court. He observes how many people play on each court on a particular day.
Suppose the opposing player has made 72% of his foul shots this season. Estimate the number of points he will score in a one-and-one situation.
according to most estimates 10 of the people in the general population are left-handed and 90 are right-handed. a
Prostate cancer are actually proven correct through subsequent biopsy. JBGHI demands a sample large enough to ensure an error of ± 2% with 90% confidence. What is the necessary sample size?
Fit a linear trend to this data. Estimate and interpret the coefficients of this model. Does the linear model fit well? Interpret the coefficient of determination and standard error of estimate. Provide three measures of forecast accuracy.
A manufacturer of nickel-hydrogen batteries randomly selects 100 nickel plates for test cells, cycles them a specified number of times, and determines that 14 of the plates have blistered.
What is the 95% confidence interval for the mean number of microwaves sold at retail store in the chain last week?
Discuss why correlations do not necessarily mean causality. Describe two variables that may be highly correlated, but do not indicate causality; and describe under what circumstances correlation leads to causality.
Describing the ANOVA model, continued. For each of the following situations, identify the response variable and the populations to be compared, and give I, the ni, and N.
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