Test the claim about the population mean y, at the given level of significance using the given sample statistics. Claim: y= 40; 0.04; o= 3.41. Sample statistics: x= 39.5, n=65

The claim is that weights (grams) of pennies made after 1983 have a mean equal to 2.500 g as required by mint specifications. The sample size is n = 37 and the test statistic ist = -0.331. Find the P value. Answer: The P value is (Round to four decimal places.)

What is the value of SS (sum of squared deviations) for the following sample? Sample: 1, 3, 2, 2 Group of answer choices 4 0.50 18 2

Assume that you want to test the claim that the paired sample data below come from a population from which the mean difference is zero. Using JMP, compute the value of the appropriate test statistic. Do the data appear to come from a population where the mean difference is zero? X: 28 35 25 25 32 30 28 37 Y: 26 31 31 25 33 35 28 33 a. No b. O c. Yes d.

IV. EVALUATION: Direction: Fill in the blanks with the appropriate word or phrase to make the following illustration on normal random variable meaningful. 1. A random variable X whose distribution has the shape of a normal curve called 2. The shape of the normal curve is with the total area of 3. The center of the normal curve is the with the value of if it is standardized. 4. The width and height of the normal curve distribution is determined by the 5. The two important parameters that best describe the normal curve are the and the 6. The curve of the normal distribution extends indefinitely at the tails but does not 7. is the area under the curve falls within 2 standard deviations of the mean. 8. is the area under the curve falls within 3 standard deviations of the mean. 9. is the area under the curve falls within 1 standard deviation of the mean. 10. a normal curve with the mean u = 0 and a standard deviation o = 1.

Use technology to help you test the claim about the population mean, p, at the given level of significance, a, using the given sample statistics. Assume the population is normally distributed. Claim: u > 1280; a = 0.07; o = 196.31. Sample statistics: x= 1308.11, n= 200 H p> 1280 Ha: p 1308.11 O D. Ho: Hs 1308.11 Ha ps 1308.11 Ha: p> 1308.11 O E. H, p> 1280 O F. Ho: µ2 1280 Ha: u< 1280 Ha ps 1280 Calculate the standardized test statistic. The standardized test statistic is 2.03. (Round to two decimal places as needed.) Determine the P-value. P 3D (Round to three decimal places as needed.)

We want to test with a significance level of 10% the hypothesis that the mean height of men aged 18 or over in a country is equal to 195. Assuming that the standard deviation of the sizes in the population is 4, Find the calculated Z value. The data constitute a sample of n = 15 men selected at random, whose heights are: 167, 167, 168, 168, 168, 169, 171, 172, 173, 175, 175, 175, 177, 182, 195 O Zc = -20.84 O Zc = 20.84 Zc = 28.04 O Zc = -28.04

Use technology to help you test the claim about the population mean, , at the given level of significance, a, using the given sample statistics. Assume the population is normally distributed. Claim: u> 1240; a = 0.09; o = 208.13. Sample statistics: x= 1267.96, n= 300 O E. Ho: us 1267.96 O F. Ho µ> 1267.96 Ha p> 1267.96 Ha µs 1267.96 Calculate the standardized test statistic. The standardized test statistic is (Round to two decimal places as needed.) Determine the P-value. P = (Round to three decimal places as needed.) Determine the outcome and conclusion of the test. V Ho. At the 9% significance level, there V enough evidence to the claim.

A primary measure of dispersion for sample data is the sample standard deviation, s.  Choose the best option to explain what the meaning of the sample standard deviation is, in general.   A. The distance between one observation and the mean. B. The average distance of an observation from the middle of the distribution. C. The average distance between observations in the sample. D. The distance between the third and first quartiles.

Claim: : P = 0.23; a 0.10; Sample Statistics : P = 0.17₁ n = 100 A.) Find the 2- test static. Select the Correct Choice below and, if necessary, fill in the answer box to Complete Your choice. 2 = ( Round to two decimal places as needed) 0 3.) What is the result of the test Reject or fail to reject? ?