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A committee of 8, consisting of 2 Republicans, 3 Democrats, and 3 Independents, is to be chosen from a group of 5 Republicans, 6 Democrats, and 4 Independents. How many different committees are possible?
An extended-life light bulb claims the bulb has an average life of 12,000 hours, with a standard deviation of 500 hours. If the distribution is bell shaped and symmetrical
A sample of 30 students are tested (sample mean=58, standard error=3.2). Compute a 99 percent confidence interval based on this sample's data. How do these students compare to the national sample?
Suppose that an individual stock's return is normally distributed with a mean of 10% and a standard deviation of 8%. What is the probability that the stock's return will be at least 16%?
Comparison of paired and unpaired samples test - Prepare a brief conclusion statement summarizing your results. What can you tell this MHMR about client satisfaction? What could you suggest they do to improve?
At 0.05 significance level, is there a difference in the mean number of defects per shift? Assume that the populations are approximately normally distributed and the variances are equal.
Forty percent of the sample wanted more local news. What is the 99% confidence interval for the proportion of readers who would like more coverage of local news?
the flavor of gum that is purchased. Determine the test value for the data given type number sold spearmint 25 wintergreen 32 cherry 18 cinnamon 43.
Suppose there is no cyclical component. Quarterly billing for water usage is shown below describe summer billing for year 5.
question the macburger restaurant chain claims that the waiting time of customers for service is normally distributed
q1. a researcher wants to determine the sample size necessary to adequately conduct a study to estimate the population
Find the Pearson correlation coefficient for the following set of data using the computational formula from the tutorial. Are these sample data sufficient to reject H0: r = 0 for ? = 0.05, two-tailed? What proportion of the variance in Y is accounted..
Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 of the claims have been padded?
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