Ahmed AlnaamiAssignment)4)… – Urgent Nursing Help

Ahmed AlnaamiAssignment)4)… – Urgent Nursing Help

Ahmed AlnaamiAssignment)4) ))))))Chan)Kulatunga1Moruzi)Statistics,)Databases)&)the)Internet)in)Clinical)Research) )))!Chose)the)one)best)answer.))1.)Which)of)the)following)is)true)concerning)the)intervals)of)a)histogram)(class)intervals)?)a. Each!interval!should!be!the!same!width!b. Class!intervals!should!be!non6overlapping!c. Class!intervals!should!be!consecutive!d. All!of!the!above!!2.)Which)of)the)following)is)not)true)concerning)histograms?)a. The!class!intervals!of!the!variable!are!usually!plotted!on!the!x6axis!b. The!frequency!of!the!each!interval!is!usually!plotted!on!the!y6axis!c. The!vertical!bars!representing!the!frequency!of!each!class!interval!are!usually!separated!d. Histograms!graphically!represent!interval/ratio!data!!3.)Which)of)the)following)measures)of)central)tendency)may)be)used)with)interval/ratio)data?)a. Mode!b. Median!c. Mean!d. All!of!the!above!!4.)Fill)in)the)approximate)percentages)on)the)normal)distribution)shown)below.)!!a.>99b. 95c. 68d. 68e. 95f. >99!)!!!!!5.)The)level)of)significance)specifies)the)probability)of)committing)a)__________)error.)a. Non6!b. β!c. Type!I!d. Type!II!!6.)Which)of)the)following)is)the)correct)general)statement)of)a)directional)(one1tailed))alternative)hypothesis)for)the)one1sample)hypothesis)test)when)a)researcher)predicts)a)decrease?)a. !µ!=!a!b. !µ!≠!a!c. !µ!>!a!d. !µ!

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