The average cost of a hotel room in Bahrain is said to be 20BD per night. To determine if this is true, a random sample of 23 hotels is taken and resulted in a sample mean X of 25BD and an S of 7.8BD. Test the appropriate hypotheses at a = 0.05. (Assume the population distribution is normal). What is the sample size____ Compute the test statistics:___ What is the decision? ___ (reject Ho or do not reject Ho) State the Ho:____ Determine the critical values:____ Determine the appropriate technique (test):____
The average cost of a hotel room in Bahrain is said to be 20BD per night. To determine if this is true, a random sample of 23 hotels is taken and resulted in a sample mean X of 25BD and an S of 7.8BD. Test the appropriate hypotheses at a = 0.05. (Assume the population distribution is normal). What is the sample size____ Compute the test statistics:___ What is the decision? ___ (reject Ho or do not reject Ho) State the Ho:____ Determine the critical values:____ Determine the appropriate technique (test):____
The average cost of a hotel room in Bahrain is said to be 20BD per night. To determine if this is true, a random sample of 23 hotels is taken and resulted in a sample mean X of 25BD and an S of 7.8BD. Test the appropriate hypotheses at a = 0.05. (Assume the population distribution is normal). What is the sample size____ Compute the test statistics:___ What is the decision? ___ (reject Ho or do not reject Ho) State the Ho:____ Determine the critical values:____ Determine the appropriate technique (test):____
The average cost of a hotel room in Bahrain is said to be 20BD per night. To determine if this is true, a random sample of 23 hotels is taken and resulted in a sample mean X of 25BD and an S of 7.8BD. Test the appropriate hypotheses at a = 0.05. (Assume the population distribution is normal).
What is the sample size____
Compute the test statistics:___
What is the decision? ___ (reject Ho or do not reject Ho)
State the Ho:____
Determine the critical values:____
Determine the appropriate technique (test):____
Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...
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