Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. A sample of 35 surveys provided a mean time of 17 minutes. Based upon past studies, the population standard deviation is assumed known with σ=4. Is the premium rate justified?
Compute the value of the test statistic. (Round to two decimal places).
What is the p-value? (Round to three decimal places).
At α=0.01, what is your conclusion? (Reject the null hypothesis) or (Do not reject the null hypothesis)
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Fowle Marketing Research, Inc., bases charges to a client on the
assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. Suppose a sample of 35 surveys produces the data in the Microsoft Excel Online file below. Use a known σ = 3.2 minutes. Is the premium rate justified? Compute the value of the test statistic (to 2 decimals). What is...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. Suppose a sample of 35 surveys produces the data in the Microsoft Excel Online file below. Use a known σ = 3.9 minutes. Is the premium rate justified? Open spreadsheet Formulate the null and alternative hypotheses for this application. H0:...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 13 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. A sample of 35 surveys from a particular dient provided the survey times shown in the file named Fowle. Based upon past studies, the population standard deviation is assumed known with 9 minutes. Is the premium rate justified for this...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less.
. Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. A sample of 35 surveys provided the survey times shown in the file named Fowle. Based upon past studies, the population standard deviation is assumed known with σ = 4 minutes. Is the premium rate justified?(a). Formulate the null...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 15 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. Suppose a sample of 35 surveys produces the data in the Microsoft Excel Online file below. Use a known σ = 3.7 minutes. Is the premium rate justified? 20.3 13.7 16.2 18.1 14.3 17.3 14.6 17.4 18.5 10.2 15.1 16.6...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed within an average time of 14 minutes or less. If more time is required, a premium rate is charged. The testable hypotheses in this situation are H0:μ=14H0:μ=14 vs. Ha:μ>14Ha:μ>14 1. Identify the consequences of making a Type I error. A. The company charges the customer the premium rate when they should. B. The company charges the customer the premium rate when they...
(4 points) Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone...
(4 points) Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed within an average time of 16 minutes or less. If more time is required, a premium rate is charged. The testable hypotheses in this situation are H M = 16 vs. H :N > 16 1. Identify the consequences of making a Type I error. A. The company charges the customer the premium rate when they should. B. The company...
#3 (4 points) Fowle Marketing Research, Inc., bases charges to a client on the assumption that...
#3 (4 points) Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed within an average time of 18 minutes or less. If more time is required, a premium rate is charged. The testable hypotheses in this situation are ?0:?=18 vs. ??:?>18 1. Identify the consequences of making a Type I error. A. The company does not charge the customer the premium rate when they should. B. The company charges the customer...
(4 points) Fowle Marketing Research, Inc., bases charges to a cient on the assumption that teleph...
(4 points) Fowle Marketing Research, Inc., bases charges to a cient on the assumption that telephone surveys can be completed within an average time of 15 mminutes or less. If more time is required, a premium rate is charged The testable hypotheses in this situation are H0 : μ = 15 vs. 14: μ > 15 1. Identify the consequences of making a Type l eror A. The company charges the customer the premium rate when they should. B. The...
Total blood volume (in ml) per body weight (in kg) is important in medical research. For...
Total blood volume (in ml) per body weight (in kg) is important
in medical research. For healthy adults, the red blood cell volume
mean is about μ = 28 ml/kg.† Red blood cell volume that is
too low or too high can indicate a medical problem. Suppose that
Roger has had seven blood tests, and the red blood cell volumes
were as follows.
31
24
43
35
32
36
31
The sample mean is x ≈ 33.1 ml/kg. Let x...
Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed in a mean time of 13 minutes or less. If a longer mean survey time is necessary, a premium rate is charged. A sample of 35 surveys from a particular dient provided the survey times shown in the file named Fowle. Based upon past studies, the population standard deviation is assumed known with 9 minutes. Is the premium rate justified for this...
(4 points) Fowle Marketing Research, Inc., bases charges to a client on the assumption that telephone surveys can be completed within an average time of 16 minutes or less. If more time is required, a premium rate is charged. The testable hypotheses in this situation are H M = 16 vs. H :N > 16 1. Identify the consequences of making a Type I error. A. The company charges the customer the premium rate when they should. B. The company...
(4 points) Fowle Marketing Research, Inc., bases charges to a cient on the assumption that telephone surveys can be completed within an average time of 15 mminutes or less. If more time is required, a premium rate is charged The testable hypotheses in this situation are H0 : μ = 15 vs. 14: μ > 15 1. Identify the consequences of making a Type l eror A. The company charges the customer the premium rate when they should. B. The...
Total blood volume (in ml) per body weight (in kg) is important
in medical research. For healthy adults, the red blood cell volume
mean is about μ = 28 ml/kg.† Red blood cell volume that is
too low or too high can indicate a medical problem. Suppose that
Roger has had seven blood tests, and the red blood cell volumes
were as follows.
31
24
43
35
32
36
31
The sample mean is x ≈ 33.1 ml/kg. Let x...
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