The manufacturers of Oriental Spice Sauce are concerned that the sodium levels in their product vary too much. A package of the sauce is supposed to contain 1000mg of sodium with a standard deviation of 150mg. A sample of 17 packages was analyzed and the sample standard deviation was 246.4609mg. Is there evidence at α=0.025 that the standard deviation of the sodium content exceeds the desired level? Assume the population is normally distributed.
Step 1 of 5: State the null and alternative hypotheses. Round to four decimal places when necessary.
Step 2 of 5: Determine the critical value(s) of the test statistic. If the test is two-tailed, separate the values with a comma. Round your answer to three decimal places.
Step 3 of 5: Determine the value of the test statistic. Round your answer to three decimal places.
Step 4 of 5: Make the decision
Step 5 of 5: What is the conclusion?
The manufacturers of Oriental Spice Sauce are concerned that the sodium levels in their product vary...
In order to ensure the consistency of their product, the Oriental Spice Sauce company has a strict policy that the standard deviation of the sodium content in the product is 140mg. For one size of bottle, the sodium content is supposed to be 900mg. In a random sample of 11 bottles, the standard deviation was found to be 275.4444mg. Is there evidence at α=0.01 that the standard deviation of the sodium content exceeds the desired level? Assume the population is...
In an effort to make a healthier product, the Oriental Spice Sauce company has reduced the amount of sodium in their product to 900mg. In addition, the standard deviation of the amount of sodium should be 130. To make sure this new product continues to meet the standard, a random sample of 29 bottles is taken, and the standard deviation for the sample was 183.8264. Is there evidence at α=0.05 that the standard deviation of the sodium content exceeds the...
The nutrition label for Oriental Spice Sauce states that one package of sauce has 1160 milligrams of sodium. To determine if the label is accurate, the FDA randomly selects 80 packages of Oriental Spice Sauce and determines the sodium content. The sample has an average of 1037.92 milligrams of sodium per package with a sample standard deviation of 267.98 milligrams. Step 1 of 2 : Calculate a 90% confidence interval for the mean sodium content in Oriental Spice Sauce.
The nutrition label for Oriental Spice Sauce states that one package of sauce has 950950 milligrams of sodium. To determine if the label is accurate, the FDA randomly selects 150150 packages of Oriental Spice Sauce and determines the sodium content. The sample has an average of 1023.421023.42 milligrams of sodium per package with a sample standard deviation of 231.87231.87 milligrams. Step 1 of 2 : Calculate a 99%99% confidence interval for the mean sodium content in Oriental Spice Sauce.
PLEASE DOUBLE CHECK ANSWERS ARE CORRECT In order to ensure the consistency of their product, the Oriental Spice Sauce company has a strict policy that the standard deviation of the sodium content in the product is 90mg. For one size of bottle, the sodium content is supposed to be 800mg. In a random sample of 24 bottles, the standard deviation was found to be 134.4864mg. Is there evidence at α=0.1 that the standard deviation of the sodium content exceeds the...
i also need to know the test statistic and critical value
please!!!!
In order to ensure the consistency of their product, the Oriental Spice Sauce company has a strict policy that the standard deviation of the sodium content in the product is 150 mg. For one size of bottle, the sodium content is supposed to be 1200 mg in a random sample of 11 bottles, the standard deviation was found to be 160.7661 mg. Is there evidence at 0.1 that...
A package 1080 milligrams of sodium. to determine if the label is accurate, the fda randomly selects 120 package of oriental spice sauce and determines the sodium content. the sample has an average of 1154.13 milligrams of sodium per package with a sample standard deviation of 242.02 milligrams. Step 1: calculate a 90% confidence interval for the mean sodium content in oriental spice sauce Step 2: choose the correct one a. hypothesized value falls in the interval, fail to reject...
A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.210.21 centimeters in diameter. The variance of the bolts should be 0.0250.025. A random sample of 2525 bolts has an average diameter of 0.2cm0.2cm with a standard deviation of 0.05450.0545. Can the manufacturer conclude that the bolts vary from the required variance at α=0.05α=0.05 level? Step 1 of 5: State the hypotheses in terms of the standard deviation. Round the standard...
A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.150.15 centimeters in diameter. The variance of the bolts should be 0.020.02. A random sample of 2222 bolts has an average diameter of 0.14cm0.14cm with a standard deviation of 0.06850.0685. Can the manufacturer conclude that the bolts vary from the required variance at α=0.05α=0.05 level? Step 1 of 5 : State the hypotheses in terms of the standard deviation. Round the...
A standardized test is given to a sixth grade class. Historically, the test scores have had a standard deviation of 10. The superintendent believes that the standard deviation of performance may have recently changed. She randomly sampled 21 students and found a mean of 147 with a standard deviation of 15.2266. Is there evidence that the standard deviation of test scores has increased at the α=0.05 level? Assume the population is normally distributed. Step 2 of 5 : Determine the critical...