A cereal maker believes that the average American eats more than 30 boxes of cereal each year. A random sample of 103 people in the United States has a mean cereal consumption of 32.3 boxes per year, with a standard deviation of 1.7 boxes. At ? = .01, can you support the cereal maker’s claim? Yes – the claim is the null hypothesis and I failed to reject the null hypothesis. Yes – the claim is the null hypothesis and I failed to reject the null hypothesis. No – the claim is the null hypothesis and I rejected the null hypothesis. No – the claim is the null hypothesis and I rejected the null hypothesis. Yes – the claim is the alternate hypothesis and I rejected the null hypothesis. Yes – the claim is the alternate hypothesis and I rejected the null hypothesis. No – the claim is the alternate hypothesis and I failed to reject the null hypothesis
A cereal maker believes that the average American eats more than 30 boxes of cereal each year. A random sample of 103 people in the United States has a mean cereal consumption of 32.3 boxes per year, with a standard deviation of 1.7 boxes. At ? = .01, can you support the cereal maker’s claim? Yes – the claim is the null hypothesis and I failed to reject the null hypothesis. Yes – the claim is the null hypothesis and I failed to reject the null hypothesis. No – the claim is the null hypothesis and I rejected the null hypothesis. No – the claim is the null hypothesis and I rejected the null hypothesis. Yes – the claim is the alternate hypothesis and I rejected the null hypothesis. Yes – the claim is the alternate hypothesis and I rejected the null hypothesis. No – the claim is the alternate hypothesis and I failed to reject the null hypothesis
A cereal maker believes that the average American eats more than 30 boxes of cereal each year. A random sample of 103 people in the United States has a mean cereal consumption of 32.3 boxes per year, with a standard deviation of 1.7 boxes. At ? = .01, can you support the cereal maker’s claim? Yes – the claim is the null hypothesis and I failed to reject the null hypothesis. Yes – the claim is the null hypothesis and I failed to reject the null hypothesis. No – the claim is the null hypothesis and I rejected the null hypothesis. No – the claim is the null hypothesis and I rejected the null hypothesis. Yes – the claim is the alternate hypothesis and I rejected the null hypothesis. Yes – the claim is the alternate hypothesis and I rejected the null hypothesis. No – the claim is the alternate hypothesis and I failed to reject the null hypothesis
A cereal maker believes that the average American eats more than 30 boxes of cereal each year. A random sample of 103 people in the United States has a mean cereal consumption of 32.3 boxes per year, with a standard deviation of 1.7 boxes. At ? = .01, can you support the cereal maker’s claim?
Yes – the claim is the null hypothesis and I failed to reject the null hypothesis.
Yes – the claim is the null hypothesis and I failed to reject the null hypothesis.
No – the claim is the null hypothesis and I rejected the null hypothesis.
No – the claim is the null hypothesis and I rejected the null hypothesis.
Yes – the claim is the alternate hypothesis and I rejected the null hypothesis.
Yes – the claim is the alternate hypothesis and I rejected the null hypothesis.
No – the claim is the alternate hypothesis and I failed to reject the null hypothesis
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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