by ella | Feb 26, 2025 | Statistics
3. Data from a National Health Survey show that men’s average weight is normally distributed with a mean of 172 pounds and a standard deviation of 29 pounds.a. If a man is chosen at random, what is the probability that his weight is greater than 180 pounds?b. If 100...
by ella | Feb 26, 2025 | Statistics
Using either the T-test or Z-Test calculate the correlation coefficient using the following values presented below. Once you have completed your calculation, discuss the following: Is there a statistically significant correlation between customer service attitude...
by ella | Feb 26, 2025 | Statistics
1. Point estimates provide less confidence in indicating a parameter’s value than a confidence interval. TrueFalse 2. Confidence intervals provide an indication of how much variation exists in the data set. TrueFalse 3. The probability that the actual population mean...
by ella | Feb 26, 2025 | Statistics
7. The following table lists all costs of quality incurred by Sam’s Surf Shop last year. Whatwas Sam’s appraisal cost for quality last year?Annual inspection costs $ 155,000Annual cost of scrap materials 286,000Annual rework cost 34,679Annual cost of quality training...
by ella | Feb 26, 2025 | Statistics
Table 2 Outcomes in the sample spaces1 s2 s3 s4 s5 s6 s7Pr .2 .3 .1 .05 .05 .1 .21. A = {s1, s2}, B = {s2, s3, s4}, C = {s3, s4, s6}, D = {s2, s7,s6}, E = {s1, s7}2. Using Table 2, show your work as you determine whether A and D are independent. 3. Using Table...
by ella | Feb 26, 2025 | Statistics
a. Using Ideal Weight data, make a histogram, get Mean, Std.Deviation, and Five-Number Summary. Describe the distribution.Description should include min, max, center, spread, number of peaks, shape, identification of outliersb. Calculate the z-score for the weight 170...
by ella | Feb 26, 2025 | Statistics
-2 #28Original Claim: Women have heights with a standard deviation equal to 5.00cm. The hypothesis test results in a P-value of 0.0055. Assume a significance level of a=0.05 and use the given information for the following.A. State a conclusion about the null...
by ella | Feb 26, 2025 | Statistics
1.Of 84 adults selected randomly from one town, 62 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance.A. 0.626<p<0.850B. 0.615<p<0.862C. 0.644<p<0.832D....
by ella | Feb 26, 2025 | Statistics
1.Of 84 adults selected randomly from one town, 62 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance.A. 0.626<p<0.850B. 0.615<p<0.862C. 0.644<p<0.832D....
by ella | Feb 26, 2025 | Statistics
8-2 #28Original Claim: Women have heights with a standard deviation equal to 5.00cm. The hypothesis test results in a P-value of 0.0055. Assume a significance level of a=0.05 and use the given information for the following.A. State a conclusion about the null...
