You may need to use the appropriate appendix table or technology to answer this question.Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 14 typical one-hour massage therapy sessions showed an average charge of $58. The population standard deviation for a one-hour session is= $4.5.(a) What assumptions about the population should we be willing to make if a margin of error is desired?O We should be willing to make the assumption that the population is at least approximately normal.O we should be willing to make the assumption that the population is at least approximately skewed right.O We should be willing to make the assumption that the population is at least approximately skewed left.O we should be willing to make the assumption that the population is at least approximately uniform.O we should be willing to make the assumption that the population is at least approximately bimodal.(b) Using 95% confidence, what is the margin of errordollars? (Round your answer to the nearest cent.)(c) Using 99% confidence, what is the margin of errordollars? (Round your answer to the nearest cent.)

GivenMean(μ)=58standard deviation(σ)=4.5sample size(n)=14

Answered: You may need to use the appropriate…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

INSTRUCTION: Choose the appropriate statistical test from the choices below and do not need an explanation. A. One-Sample t-Test B. Two-Sample t-Test C. Paired-Sample t-Test D. One-Way ANOVA E. Two-Way ANOVA F. Correlational Analysis G. Regression Analysis 1. What appropriate statistical test should be performed if a researcher would like to determine if there is a significant difference in the Systolic blood pressure (SBP) between Male and Female? 2. What appropriate statistical test should be performed if a researcher would like to determine if there is a significant difference in the Serum Creatinine (SCr) between "Under 60" and "60 and Above"? 3. What appropriate statistical test should be performed if a researcher would like to determine if there is a significant difference in the "Cholesterol" level before ("Pre") and after ("Post") the treatment or therapy? 4. What appropriate statistical test should be performed if a researcher would like to determine if there is a…
How can I solve?
II. Refer to the problem below. Show complete solutions. Box and label your final answers. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution. 95% of the female students in a school have a systolic blood pressure between 97 mm and 153 mm. 1. Determine the mean. 2. Determine the standard deviation
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t-table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. In environmental studies, sex ratios are of great importance. Wolf society, packs, and ecology have been studied extensively at different locations in the U.S. and foreign countries. Sex ratios for eight study sites in northern Europe are shown below. Location of Wolf Pack % Males (Winter) % Males (Summer) Finland 60 42 Finland 51 56 Finland 87 71 Lapland 55 48 Lapland 64 55 Russia 50 50 Russia 41 50 Russia 55 45 What is the value of the sample test statistic? (Round your answer to three decimal places.)
The problem below looks at forecasting methodologies to determine which forecasting model results in the most accurate forecasts. Accuracy is determined by the lowest mean absolute deviation. Emergency calls to the 911 system of York County for the past 24 weeks are shown below. Accurate forecasts are needed to determine the number of operators needed to staff the station. Week # of Calls 1 50 2 35 3 25 4 40 5 45 6 35 7 20 8 30 9 35 10 20 11 15 12 40 13 55 14 35 15 25 16 55 17 55 18 40 19 35 20 60 21 75 22 50 23 40 24 65 SIMPLE LINEAR REGRESSION Use all of the data, weeks 1 - 24, to calculate the regression equation for this data. Use the weeks (1-24) as the independent variable (x) and number of calls as the dependent variable (y). Once you have the equation, forecast weeks 4 through 24 (enter 4, 5, 6, etc. as the x…
3. ACT scores are roughly Normal with mean 20.8 and standard deviation 4.8, and SAT scores are roughly Normal with mean 1026 and standard deviation 209. Some students take both. For those students, the correlation between the two scores is 0.72. a. What's the equation of the straight line that you'd use to predict ACT scores based on SAT scores? b. I got a 1300 on the SAT, and I'm planning to take the ACT. Predict what I might get, c. What's the equation of the straight line that you'd use to predict SAT scores based on ACT scores? d. My friend got a 27 on the ACT, and she's planning to take the SAT. Predict what she might get. e. How come you're predicting both that I'll do worse than her on the ACT and that she will do worse than me on the SAT? 4. Draw a simple random nlc of size 15 from the labels 40os01, 402.
2. Which measures of central tendency can be used for the variable below? Explain why each of the three measures of central tendency is or is not applicable. Answer Here: How closely do you follow the news about current events? Would you say... Cumulative Frequency Percent Valid Percent Percent Valid Most of the time 1128 41.9 41.9 41.9 some of the time 1304 48.4 48.5 90.4 rarely 239 8.9 8.9 99.3 never 19 .7 .7 100.0 Total 2690 99.9 100.0 Missing Don't Know/Refused (DON'T READ) 2 .1
Now suppose that the true mean exposure time is different from 8h/day, yet the sample mean falls in the acceptance region. In this case we would fail to reject H0 when it is false. This type of wrong conclusion is called a A. type II error B. type I error C. no error D. statistically significant
please use one or two variable analysis to solve
You may need to use the appropriate appendix table or technology to answer this question. Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 11 typical one-hour massage therapy sessions showed an average charge of $54. The population standard deviation for a one-hour session is o = $7.5. (a) What assumptions about the population should we be willing to make if a margin of error is desired? O we should be willing to make the assumption that the population is at least approximately skewed right. O we should be willing to make the assumption that the population is at least approximately normal. O we should be willing to make the assumption that the population is at least approximately bimodal. O we should be willing to make the assumption that the population is at least approximately uniform. O we should be willing to make the assumption that the population is at least approximately skewed left. (b) Using 95% confidence, what is the…
Q. 2. Suppose Country B's government now reports that its population mean disposable household income is $1,000 per month, with a standard deviation of $150. Country A's population mean is $1,100, with a standard deviation of $310. a. b. Which country has more variation in income? Explain using popular phrases, such as "gap between rich and poor." Each country defines the poverty level to be $755. If you assume that income has a normal distribution, find the probability that a household's income is below the poverty level in i. Country A ii. Country B Does it seem reasonable to assume a normal distribution? In general, is income symmetric or skewed?
when computing descriptive statistics, we are interested only both describing our data and also in presenting the means and standard deviations of all dependent variables. True or false When writing your participant section, you include all measures of central tendency (mean, median, mode) and all measures of variablility (variance, range, standard deviation). True or false

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS