To combat antibiotic resistance, the Quality Improvement Consortium recommends a throat swab to confirm strep throat bef

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To Combat Antibiotic Resistance The Quality Improvement Consortium Recommends A Throat Swab To Confirm Strep Throat Bef 1 (45.5 KiB) Viewed 15 times

To combat antibiotic resistance, the Quality Improvement Consortium recommends a throat swab to confirm strep throat before a physician prescribes antibiotics to children under age 5. Nationally, 40 percent of children under 5 who received antibiotics did not have a throat swab. The Colorado Department of Health took a random sample of 98 children under the age of 5 who received antibiotics for throat infections and found that 25 did not have a throat swab. At a = .05, is this a statistically significant reduction over last year's national rate of 40 percent? (a-1) Choose the correct null and alternative hypotheses. O HỌ: TT ≥ .40 vs. H: TT< .40 Ho: TT ≤ .40 vs. H: TT > 40 ⒸHO: π = .40 vs. H₁: π #.40 (a-2) Calculate the critical value. (A negative value should be indicated by a minus sign. Round your answer to 3 decimal places.) Critical value (a-3) Calculate the test statistic. (A negative value should be indicated by a minus sign. Round your answer to 2 decimal places.)