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state the hypothesis and identify the claima. There is less than 7 beds per house in Compton; Decision in to reject the null hypothesisb. 30 % of Americans go to church on Sundays. Decision is not to reject the null hypothesis
A dish contains 20 gumballs - 9 blue, 6 red and 5 white. We randomly select two gumballs from the dish without replacement. a) Let X be the number of blue gumballs selected. Complete the probability distribution of X by filling in the appropriate p..
You have a graph with a regression line that is positively sloped. The regression line starts with observation points tightly packed around the regression line but as you move across the x-axis the observations tend to get further and further away..
20 turn out to be over 65 inches tall, you get $20. Which is better: a sample of size 100 or a sample of size of 1,000? Choose one and explain. Does the law of average relate to the answer you give?
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
Given the following frequency distribution, find out the mean, variance, and standard deviation.
Starting with the initial solution derived by the nw corner method identify the cell w/the best cost improvement index and the quantity that can be transferred to that cell.
How much time should be allowed if we wish to ensure that at least 9 out of 10 students (on average) can complete it? (round to the nearest minute).
P dollars is invested at annual interest rate r for 1 year. If the interest is compounded semiannualy, then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year.
Completion of today's paper. If X denotes the number of papers belonging to seniors among those checked, will X have a binomial distributuin?
Locate value of the population mean in your sketch and make an estimate of the standard deviation
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
Calculate the 95% confidence interval for the population proportion of patients who are successfully treated. (c) Write a sentence that correctly interprets this interval.
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