Pepsi is experimenting with a new machine that fills their cans with product three times faster...
Pepsi is experimenting with a new machine that fills their cans with product three times faster than the previous method they were using. However, they are worried that the increase in speed might be because the machine is less accurate. You want to test if the machine is not filling the cans to the specified 12 ounces. You sample 400 cans filled by the new machine and find they fill the cans with an average 11.88 ounces with a standard deviation of 0.82 ounces.
Find and enter the correct critical value needed to test your claim at the 5% significance level. Round your final answer to 4 decimals. Hint: Things you will need to know: alpha, df, is this one or two-tailed test, and which table to use!
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Pepsi is experimenting with a new machine that fills their cans
with product three times faster...
Pepsi is experimenting with a new machine that fills their cans with product three times faster...
Pepsi is experimenting with a new machine that fills their cans with product three times faster than the previous method they were using. However, they are worried that the increase in speed might be because the machine is less accurate. You want to test if the machine is not filling the cans to the specified 12 ounces. You sample 400 cans filled by the new machine and find they fill the cans with an average of 11.88 ounces with a...
Pepsi is experimenting with a new machine that fills their cans with product three times faster...
Pepsi is experimenting with a new machine that fills their cans with product three times faster than the previous method they were using. However, they are worried that the increase in speed might be because the machine is less accurate. You want to test if the machine is not filling the cans to the specified 12 ounces. You sample 400 cans filled by the new machine and find they fill the cans with an average 11.88 ounces with a standard...
Pepsi is experimenting with a new machine that fills their cans with product three times faster...
Pepsi is experimenting with a new machine that fills their cans with product three times faster than the previous method they were using. However, they are worried that the increase in speed might be because the machine is less accurate. You want to test if the machine is not filling the cans to the specified 12 ounces. You sample 400 cans filled by the new machine and find they fill the cans with an average 11.88 ounces with a standard...
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General Mills is concerned about the price retailers are charging for their highest rated cereal, Lucky Charms. They want you to test if the price retailers are charging differs from the averagę price of their competitor's top selling brand, Captain Crunch. The Oats Company requires that all stores sell Captain Crunch for $3.99. You the pricing manager for General Mills, sample 35 different grocery stores and find that the average price they charged was $3.91 and had a variance of...
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A quality-control engineer wants to find out whether or not a new machine that fills bottles with liquid has less variability than the machine currently in use. The engineer calibrates each machine to fill bottles with 16 ounces of a liquid. After running each machine for 5 hours, she randomly selects 15 filled bottles from each machine and measures the volume of their contents (in ounces). The resulting data is provided in the table below. Is the variability in the...
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According to a new report from the Wall Street Journal, female real estate agents sell more...
According to a new report from the Wall Street Journal, female real estate agents sell more homes per year than male real estate agents do. You, the head of a large real estate company, want to know if this is true within your organization, so you sample 55 women and 37 men. From the sample, you find that the female agents sell an average of 25.2 homes per year with a standard deviation of 7.7 homes. The male agents sell...
General Mills is concerned about the price retailers are charging for their highest rated cereal, Lucky...
General Mills is concerned about the price retailers are charging for their highest rated cereal, Lucky Charms. They want you to test if the price retailers are charging differs from the average price of their competitor’s top selling brand, Captain Crunch. The Oats Company requires that all stores sell Captain Crunch for $3.99. You, the pricing manager for General Mills, sample 35 different grocery stores and find that the average price they charged was $3.91 and had a variance of...
General Mills is concerned about the price retailers are charging for their highest rated cereal, Lucky...
General Mills is concerned about the price retailers are charging for their highest rated cereal, Lucky Charms. They want you to test if the price retailers are charging differs from the average price of their competitor’s top selling brand, Captain Crunch. The Oats Company requires that all stores sell Captain Crunch for $3.99. You, the pricing manager for General Mills, sample 35 different grocery stores and find that the average price they charged was $3.91 and had a variance of...
Pepsi is experimenting with a new machine that fills their cans with product three times faster than the previous method they were using. However, they are worried that the increase in speed might be because the machine is less accurate. You want to test if the machine is not filling the cans to the specified 12 ounces. You sample 400 cans filled by the new machine and find they fill the cans with an average 11.88 ounces with a standard...
General Mills is concerned about the price retailers are charging for their highest rated cereal, Lucky Charms. They want you to test if the price retailers are charging differs from the averagę price of their competitor's top selling brand, Captain Crunch. The Oats Company requires that all stores sell Captain Crunch for $3.99. You the pricing manager for General Mills, sample 35 different grocery stores and find that the average price they charged was $3.91 and had a variance of...
A quality-control engineer wants to find out whether or not a new machine that fills bottles with liquid has less variability than the machine currently in use. The engineer calibrates each machine to fill bottles with 16 ounces of a liquid. After running each machine for 5 hours, she randomly selects 15 filled bottles from each machine and measures the volume of their contents (in ounces). The resulting data is provided in the table below. Is the variability in the...
According to a new report from the Wall Street Journal, female real estate agents sell more homes per year than male real estate agents do. You, the head of a large real estate company, want to know if this is true within your organization, so you sample 55 women and 37 men. From the sample, you find that the female agents sell an average of 25.2 homes per year with a standard deviation of 7.7 homes. The male agents sell...
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