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An experiment was designed to estimate the mean difference in weight gain for pigs fed ration A as compared with those fed ration B. Eight pairs of pigs were used. The pigs within each pair were litter-mates. The rations were assigned at random to the two animals within each pair. The gains (in pounds) after 45 days are shown in the following table. Assuming weight gain is normal, find the 98%confidence interval estimate for the mean of the differences ?d, where d = ration A - ration B. (Give your answers correct to two decimal places.)
Baseball games are uniformly distributed between 160 minutes and 240 minutes. What is the probability that a 9-inning game will last between 180 and 220 minutes?
question a researcher believes that the percentage of people who exercise in california is greater than the national
The probability that a given alternator will fail on a 1-hour flight is .02. What is the probability that (a) both will fail? (d) Neither will fail? (c) One or the other will fail? Show all steps carefully.
Suppose four heads appeared face up on four tosses of a coin. what is the probability that a head will appear face up in the next toss of the coin?
What are the theoretical parameters for the sampling distribution based on these 40 trains? Assume you are dealing with an infinite population of trains.
the lifetime in hours of a certain kind of radio tube is a random variable with the probability density function given
If he finds differences, then he may realize that, 1) he will need to evaluate his course ethnic sensitivity,
The standard deviation is 4. what is the best point estimate of the mean? find the 95% confidence interval of the mean score for golfers.
Identify the dependent variable for this study and what scale of measurement (nominal, ordinal, interval, or ratio) is used to measure the dependent variable?
sample methods identify which of the following applies simple random systematic conveniencestratified or cluster sample
For each, draw the histogram of the sampling distribution of bar(y). Which sampling distribution has the smaller variance, and why?
assess the use of qualitative data to support business decision making. consider different tyoes of qualitative data
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