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Question: A uniform bar of length Land weight W is suspended symmetrically by two strings, as shown in Fig. Set up the differential equation of motion for small angular oscillations of the bar about the vertical axis 0-0, and determine its period.
Commercial A was selected by 60 women and by 63 men. Find the odds of selecting Commercial A for the men. Do the same for the women.
50 seconds and a standard deviation of 50 seconds. Find the probability that a randomly selected boy in secondary school can run the mile in less than 335 seconds.
Do you jog? The Gallup Poll once asked a random sample of 1540 adults, "Do you happen to jog?" Suppose that the true proportion of all adults who jog.
Test an appropriate hypothesis and state your conclusion. Explain how you dealt with the outlier and why you made the recommendation you did.
The histogram shows the 2004 per capita consumption of paper for 195 countries around the world.- Which summary statistics would you choose to summarize the center and spread in these data? Why?
The food distributor selects a sample of stores located in areas where he believes the shoppers are receptive to trying new products. What type of sampling does this represent?
You survey first-year students and obtain the counts 79, 83, 36, and 12, respectively. Use a goodness-of-fit test to examine how well your university reflects the national average.
H0 mean = 9 H1 mean = >9 Test sample 49 and the sample mean 13.3, population standard deviation 14 assume population is approximately normal. Compute P value?
Each of n 2 people puts his or her name on a slip of paper (no two have the same name). The slips of paper are shuffled in a hat, and then each person.
The manager of a local branch of a bank believes that over the past few years the bank has begun to cater to a different clientele and that the average amount withdrawn from its ATMs is no longer $140.00.
Find the sample proportion of customers who believe ATM machines should offer postage stamps, and check the nonskewness criterion.
Show all the steps of your hypothesis test including a) the claim being tested , b) the null and alternative hypothesis, c) the test statistic, d) the p value, e) initial conclusion, and f) a final conclusion about the original claim.
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