When a poultry farmer uses his regular feed, the newborn chickens have normally distributed weights with...

When a poultry farmer uses his regular feed, the newborn chickens have normally distributed weights with a mean of 62.7 oz. In an experiment with an enriched feed mixture, ten chickens are born with the following weights (in ounces). 64.9, 64.6, 65, 66.6, 64.9, 67.8, 65.9, 67.5, 61.9, 65.4 Use the α=0.05 significance level to test the claim that the mean weight is higher with the enriched feed. (a) The sample mean is x⎯⎯⎯= (b) The sample standard deviation is s= (c) The test statistic is t= (d) The critical value is t∗= (e) The conclusion is

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orchestra answered 1 year ago

When a poultry farmer uses his regular feed, the newborn checkens have normally distributed weights with...

When a poultry farmer uses his regular feed, the newborn checkens have normally distributed weights with a mean of 61.961.9 oz. In an experiment with an enriched feed mixture, ten chickens are born with the following weights (in ounces). 67, 65.9, 65.6, 64.5, 64, 62.7, 69.1, 66.6, 64, 63.867, 65.9, 65.6, 64.5, 64, 62.7, 69.1, 66.6, 64, 63.8 Use the α=0.05α=0.05 significance level to test the claim that the mean weight is higher with the enriched feed. The sample mean...

A poultry farmer using a certain type of feed in his chickens achieves an average weight...

A poultry farmer using a certain type of feed in his chickens achieves an average weight of 1.65kgs in six weeks with a standard deviation of 2kgs for a sample of 56 chickens . he suspects the feed and does the experiment on 60 chickens on a different feed and achieves an average weight of 1.7kgs in six weeks when the standard deviation is 3. Are the two feed types significantly different?. test at 5% significance level. Kindly show all...

A farmer wanted to know if the amount of feed consumed by his chickens would be...

A farmer wanted to know if the amount of feed consumed by his chickens would be affected by the presence or absence of hatchlings. Two groups of chickens were raised from hatching either singly or in a group of five hatch-mates. At the age of six weeks, all subjects were placed in a small cage with a same-aged, group-reared chicken (in the case of group-reared subjects, the test chicken was from a different group). The following data represents the amount...

The weights for newborn babies is approximately normally distributed with a mean of 5lbs and a...

The weights for newborn babies is approximately normally distributed with a mean of 5lbs and a standard deviation of 1.5lbs. Consider a group of 1,000 newborn babies: How many would you expect to weigh between 4-7lbs? How many would you expect to weigh less than 6lbs? How many would you expect to weigh more than 5lbs? How many would you expect to weigh between 5-10lbs?

Big chickens: According to a poultry industry news website, the weights of broilers (commercially raised chickens)...

Big chickens: According to a poultry industry news website, the weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1521 grams and standard deviation 166 grams. Use the Cumulative Normal Distribution Table to answer the following. (a) What proportion of broilers weigh between 1185 and 1283 grams? (b) What is the probability that a randomly selected broiler weighs more than 1650 grams? (c) Is it unusual for a broiler to weigh more than 1710 grams? Round the...

The weights for newborn babies is approximately normally distributed with a mean of 6.9 pounds and...

The weights for newborn babies is approximately normally distributed with a mean of 6.9 pounds and a standard deviation of 1.1 pounds. Consider a group of 1200 newborn babies: 1. How many would you expect to weigh between 6 and 9 pounds? 2. How many would you expect to weigh less than 8 pounds? 3. How many would you expect to weigh more than 7 pounds? 4. How many would you expect to weigh between 6.9 and 10 pounds?

The weights of American newborn babies are normally distributed with a mean of 119.54 oz (...

The weights of American newborn babies are normally distributed with a mean of 119.54 oz ( about 7 pounds 8 ounces) and a population standard deviation of .61 oz. A sample of 11 newborn babies is randomly selected from the population. (a) find the standard error of the sampling distribution. Round your answer to 4 decimal places. (b) Using your answer to part (a), what is the probability that in a random sample of 11 newborn babies, the mean weight...

The weights for newborn babies is approximately normally distributed with a mean of 6.4 pounds and...

The weights for newborn babies is approximately normally distributed with a mean of 6.4 pounds and a standard deviation of 1.4 pounds. Consider a group of 1100 newborn babies: 1. How many would you expect to weigh between 4 and 8 pounds? 2. How many would you expect to weigh less than 7 pounds? 3. How many would you expect to weigh more than 6 pounds? 4. How many would you expect to weigh between 6.4 and 10 pounds?

he weights for newborn babies is approximately normally distributed with a mean of 5.1 pounds and...

he weights for newborn babies is approximately normally distributed with a mean of 5.1 pounds and a standard deviation of 1.4 pounds. Consider a group of 1500 newborn babies: 1. How many would you expect to weigh between 3 and 6 pounds? 2. How many would you expect to weigh less than 5 pounds? 3. How many would you expect to weigh more than 4 pounds? 4. How many would you expect to weigh between 5.1 and 8 pounds? Get...

2. The weights of American newborn babies are normally distributed with a mean of 119.54 oz...

2. The weights of American newborn babies are normally distributed with a mean of 119.54 oz (about 7 pounds 8 ounces) and a population standard deviation of 0.67 oz. A sample of 14 newborn babies is randomly selected from the population. (a) Find the standard error of the sampling distribution. Round your answer to 4 decimal places. (b) Using your answer to part (a), what is the probability that in a random sample of 14 newborn babies, the mean weight...

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