Keep cool: Following are prices, in dollars, of a random sample of ten 7.5-cubic-foot refrigerators. A consumer organizationreports that the mean price of 7.5-cubic-foot refrigerators is less than $355. Do the data provide convincing evidence of thisclaim? Use the a = 0.10 level of significance and the P-value method with the TI-84 Plus calculator. Answer the following. Keep cool: Following are prices, in dollars, of a random sample of ten 7.5-cubic-foot refrigerators. A consumer organizationreports that the mean price of 7.5-cubic-foot refrigerators is less than $355. Do the data provide convincing evidence of thisclaim? Use the a = 0.10 level of significance and the P-value method with the TI-84 Plus calculator.335396348309338Part 1 of 5299354371315325Following is a dotplot for these data. Is it reasonable to assume that the conditions for performing a hypothesis test aresatisfled? Explain.Send data to Excel250300350The dotplot shows that there (Choose one) outliers.areThe dotplot shows that there are noevidence of strong skewness.We (Choose one) assume that the population is approximately normal.It (Choose one) reasonable to assume that the conditions are satisfied.The dotplot shows that there (Choose one)outliers.The dotplot shows that there (Choose one)evidence of strong skewness.We (Choose one) assumi is noon is approximately normal.It (Choose one) v reasonable to assume that the conditions are satisfiedThe dotplot shows that there (Choose one) outliers.The dotplot shows that there (Choose one) evidence of strong skewness.We (Choose one) ▼assume that the population is approximately normal.It (Choose one) reasonable to assume that the conditions are satisfled.isis notThe dotplot shows that there (Choose one) outliers.The dotplot shows that there (Choose one)evidence of strong skewness.We (Choose one)assume that the population is approximately normal.canItcannoteasonable to assume that the conditions are satisfied. Part 1 of 4State the appropriate null and alternate hypotheses.HoThis hypothesis test is a (Choose one) v test.left-tailedright-talledtwo-tailedPart 2 of 4Compute the P-value. Round the P-value to at least four decimal places.P-value =Part 3 of 4Determine whether to reject H(Choose one)the null hypothesis H.RejectDo not reject

Answered: Keep cool: Following are prices, in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Keep cool: Following are prices, in dollars, of a random sample of ten 7.5-cubic-foot refrigerators. A consumer organization reports that the mean price of 7.5-cubic-foot refrigerators is less than $355. Do the data provide convincing evidence of this claim? Use the a = 0.10 level of significance and the P-value method with the TI-84 Plus calculator. Answer the following.

Part 1 of 4
State the appropriate null and alternate hypotheses.
Ho
This hypothesis test is a (Choose one) v test.
left-tailed
right-talled
two-tailed
Part 2 of 4
Compute the P-value. Round the P-value to at least four decimal places.
P-value =
Part 3 of 4
Determine whether to reject H
(Choose one)
the null hypothesis H.
Reject
Do not reject

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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