Pg. 35145. The number of "destination weddings" has skyrocketed in recent years. For example, many couplesare opting to have their weddings in the Caribbean. A Caribbean vacation resort recently advertised inBride Magazine that the cost of a Caribbean wedding was less than $30,000. Listed below is the totalcost in $000 for a sample of 8 Caribbean weddings.29.729.431.729.130.529.129.829.0At the .05 significance level, is it reasonable to conclude the mean wedding cost is less than $30,000 asadvertised?

The data set is: 29.7, 29.4, 31.7, 29.0, 29.1, 30.5, 29.1, 29.8 The null and alternative hypotheses…

Answered: Pg. 351 45. The number of "destination…

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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Tardigrades, or water bears, are a type of micro-animal famous for their resilience. In examining the effects of radiation on organisms, an expert claimed that the amount of gamma radiation needed to sterilize a colony of tardigrades no longer has a mean of 1150 Gy (grays). (For comparison, humans cannot withstand more than 10 Gy.) A random sample of 25 tardigrade colonies found that the amount of gamma radiation needed to sterilize a colony had a sample mean of 1133 Gy, with a sample standard deviation of 02 Gy. Assume that the population of amounts of gamma radiation needed to sterilize a colony of tardigrades is appraximately normally distributed. Complete the parts below to perform a hypothesis test to see if there is enough evidence, at the 0.05 level af significance, to support that H, the mean amount of gamma radiation needed to sterilize a colony of tardigrades, is not equal to 1150 Cy. (a) State the null hypothesis H, and the alternative hypothesis H, that you would use for…
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A survey of 100 students are taken. 32 Yes and 68 no. Find the point estimate of p and 96% CI.
A researcher wants to determine the percentage given below. Describe how the researcher should apply the five basic steps in a statistical study. (Assume that all the people in the poll answered truthfully.) the percentage of volunteers that volunteer over 10 hours per week Determine how to apply the first basic step in a statistical study in this situation. Choose the correct answer below. A. The population is all volunteers that volunteer over 10 hours per week The researcher wants to estimate the number in this population that volunteer over 10 hours per week OB. The population is all volunteers. The researcher wants to estimate the percentage in this population that volunteer over 10 hours per week. C. The population is all volunteers that do not volunteer over 10 hours per week. The researcher wants to estimate the number in this population that do not volunteer over 10 hours per week. D. The population is all volunteers. The researcher wants to estimate the percentage in this…
A. Find the value of the test statistic. (Round to two or more decimal places.) B. Find the p-value. (Round to three or more decimal places.) C. Can we conclude that there is a relationship between the type of Aragon tractor sold and the geographic region of the sale? Use the 0.10 level of significance.
Here are the fuel efficiencies (in mpg) of 15 new cars. 49, 35, 17, 21, 27, 23, 45, 50, 39, 51, 41, 47, 25, 14, 29 What is the percentage of these cars with a fuel efficiency less than 40 mpg?
Suppose a poll was to be conducted in an elementary school by interviewing a representative sample of 50 students. The interviewer sat outside the cafeteria when it opened and talked to the first 50 students. 1. Would this be a representative sample of the elementary school. Support your answer (tell why). 2a. Describe (who is) the population of interest. 2b. Describe (who is) the sample.
a. Write the claim identifying H0 Ha B.find P value C. Decided whether to reject or fail d. Interpret the decision in the context
The data set shows the GDP per people in 24 countries, along with the proportion of person that have a linkedin social media account. A. the covariance is ___ percentage dollars. be careful of the units. round to the nearest integer. B. r= ___ c. Choose the correct answer below. A. There is no clear relationship between the GDP and LinkedIn accounts. B. There is a strong positive relationship between the GDP and LinkedIn accounts. C. There is a weak positive relationship between the GDP and LinkedIn accounts. D. There is a strong negative relationship between the GDP and LinkedIn accounts. GDP (PPP) Social Media Usage (%) 6,905 89 17,863 87 5,114 86 9,989 86 6,121 83 6,593 83 13,899 81 4,013 83 16,146 75 4,696 79 16,470 76 19,857 72 18,155 71 3,501 74 19,526 75 8,007 76 4,033 73 13,651 69 16,990 68 6,642 70 6,447 70 6,434 68 13,052 64 10,874 47
A marriage counselor is interested in the proportion the clients she counsels that stay married. Match the vocabulary word with its corresponding example. 1. The answer Yes or No to the question on whether a client stayed married 2. All of the counselor's clients 3. The proportion of all of the counselor's clients who stayed married 4. The list of Yes or No answers to the question on whether the clients stayed married 5. The proportion of the 55 randomly selected clients who stayed married 6. The 55 randomly selected clients that were chosen for this study Sample Population Statistic Variable Data Parameter
13. A researcher calculates the column percent and finds the maximum difference across columns is 17.3%. This is an example of ____ relationship: a. weak b. moderate c. strong d. positive

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