Listed below are the lead concentrations inmuμg/gmeasured in different traditional medicines. Use a0.050.05significance level to test the claim that the mean lead concentration for all such medicines is less than1414muμg/g.Assume that the sample is a simple random sample. 18 9.5 7.5 15.5 4 11.5 13.5 13 5.5 20.5 all 3 steps. Listed below are the lead concentrations in µg/g measured in different traditional medicines. Use a 0.05 significance level to test the claim that the mean lead concentration for all suchmedicines is less than 14 ug/g. Assume that the sample is a simple random sample.189.57.515.5411.513.5135.520.5 OAssuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?Ο Α. Ho: μ= 14 μg/gΟ Β. H : μ> 14 μggH1: µ> 14 µg/gH,: µ< 14 µg/gΟ c. Ho: μ= 14 μglH1: µ+ 14 ug/gO D. Ho: H= 14 µg/gH,: µ< 14 µg/g

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Description: Listed below are the lead concentrations inmuμg/gmeasured in different traditional medicines. Use a0.050.05significance level to test the claim that the mean lead concentration for all such medicines is less than1414muμg/g.Assume that the sample is

Dataset and calculation for mean and standard deviation is shown below

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Listed below are the lead concentrations in

muμg/g

measured in different traditional medicines. Use a

0.050.05

significance level to test the claim that the mean lead concentration for all such medicines is less than

1414

muμg/g.

Assume that the sample is a simple random sample.

18 9.5 7.5 15.5 4 11.5 13.5 13 5.5 20.5

all 3 steps.

Listed below are the lead concentrations in µg/g measured in different traditional medicines. Use a 0.05 significance level to test the claim that the mean lead concentration for all such
medicines is less than 14 ug/g. Assume that the sample is a simple random sample.
18
9.5
7.5
15.5
4
11.5
13.5
13
5.5
20.5 O
Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?
Ο Α. Ho: μ= 14 μg/g
Ο Β. H : μ> 14 μgg
H1: µ> 14 µg/g
H,: µ< 14 µg/g
Ο c. Ho: μ= 14 μgl
H1: µ+ 14 ug/g
O D. Ho: H= 14 µg/g
H,: µ< 14 µg/g

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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