Sample Examination One - La Jolla High School

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26 Sarnple <strong>Examination</strong> ()ne Section Il 4. A real estate agent in Texas rvished to determine if there was a relationship betn'een where a house rvas located and the number of bedrooms the house has. The agent selected the past 518 home sales during the months of June through September. The data collected is shornn belorv: 2 bedrooms 40 CITIES Dallas Fort Worth Other al JI l1 3 bedrooms 157 91 bl 4 bedrooms 46 44 37 (a) Calculate the relative percentages of 2,3, arid 4 bedroom homes for each of the 3 cities. (b) Do these data provide convincing evidence of an association between the location of a house and number of bedrooms a house has? Give appropriate statistical evidence to support your conclusion. Unauthorized copying or reusing any part of this page is illegal.
Section II Sarnple Exarnination <strong>One</strong> 27 5. An experimenter wanted to determine if weights differed between smokers and nonsmokers. She randomly selected 92 people, all from the same age group and records if they smoke or they do not smoke. She then records their current weight, Shown below is a comouter analvsis of the variable weisht for smokers and non-smokers. \r--l -Ll ^ v d! fdufc Variable Smokes No Yes Smokes No Yes N 64 2B SE Mean 2 .95 (a) Is this an experiment? Explain conclusions we can draw from (b) Are there any outliers in either work to verifu your answer. racart 1 Aa i-) Median 1-41.00 1-51.50 Minimum Maximum 95.00 215.00 108.00 190 .00 rvhy or why not. the study? a ! r'IE all I4I . 12 1 q,) \A .}'l 123. s0 132.00 How does this affect the SLDev 23.6A 22.89 a)? l-55.00 170.00 the smokers or nonsmokers group l Show the Unauthorized copyang 0r reusrng any part of this page is rllegal.
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Sample Examination One - La Jolla High School

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