Mathematics, 02.04.2021 18:20 arizola757
Plz answer the question if u want 30 points.
A marketing company is conducting a survey about snack foods. The surveyors will call a number of households in one city to question them about their snacking preferences. Which strategy should the company use in order to have an accurate collection of survey responses relating to the preferences of the general population of the city?
select and call phone numbers at random
select and call phone numbers at random
offer money to people to answer a survey
offer money to people to answer a survey
call customers of a single busy supermarket
call customers of a single busy supermarket
call people who work at restaurants or grocery stores
Answers: 3
Mathematics, 21.06.2019 15:10
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Mathematics, 21.06.2019 22:00
In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in
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Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?
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Mathematics, 22.06.2019 04:30
Consider the linear model for a two-stage nested design with b nested in a as given below. yijk=\small \mu + \small \taui + \small \betaj(i) + \small \varepsilon(ij)k , for i=1,; j= ; k=1, assumption: \small \varepsilon(ij)k ~ iid n (0, \small \sigma2) ; \small \taui ~ iid n(0, \small \sigmat2 ); \tiny \sum_{j=1}^{b} \small \betaj(i) =0; \small \varepsilon(ij)k and \small \taui are independent. using only the given information, derive the least square estimator of \small \betaj(i) using the appropriate constraints (sum to zero constraints) and derive e(msb(a) ).
Answers: 2
Plz answer the question if u want 30 points.
A marketing company is conducting a survey about snack...
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