. Mary recently switched her primary doctor to one specializing in caring for elderly patients. On her new doctor's webs
Posted: Tue Jul 05, 2022 9:56 am
. Mary recently switched her primarydoctor to one specializing in caring for elderly patients. On hernew doctor's website, it says that the mean systolic blood pressureamong elderly females is 115 millimeters of mercury (mmHg). Marybelieves the value is actually higher. She bases her belief on arecently reported study of 17 randomly selected, elderly females.The sample mean systolic blood pressure was 123mmHg, and the samplestandard deviation was 23mmHg.
Assume that the systolic bloodpressures of elderly females are approximately normallydistributed. Based on the study, at the 0.05 level of significance,can it be concluded that µ, the population mean systolic bloodpressure among elderly females, is greater than 115mmHg?
Perform a one-tailed test. Completethe parts below.
Carry your intermediate computationsto three or more decimal places.
H₀ :
H₁ : degreesof freedom:
Z/t/Chi-square/F
Fill in the blanks to describe a TypeI error.
A Type I error would berejecting/failing to reject (choose one) the hypothesis that µis less than/less than or equal to/greaterthan/greater than or equal to/no equalto/equal to (choose one) 7.3/6.9/0.5 (choose one) when, in fact, µ is equal to 0.5/equal to7.3/less than 0.5/less than 6.5/lessthan 7.3/greater than 7.3 (choose one)
Assume that the systolic bloodpressures of elderly females are approximately normallydistributed. Based on the study, at the 0.05 level of significance,can it be concluded that µ, the population mean systolic bloodpressure among elderly females, is greater than 115mmHg?
Perform a one-tailed test. Completethe parts below.
Carry your intermediate computationsto three or more decimal places.
H₀ :
H₁ : degreesof freedom:
Z/t/Chi-square/F
Fill in the blanks to describe a TypeI error.
A Type I error would berejecting/failing to reject (choose one) the hypothesis that µis less than/less than or equal to/greaterthan/greater than or equal to/no equalto/equal to (choose one) 7.3/6.9/0.5 (choose one) when, in fact, µ is equal to 0.5/equal to7.3/less than 0.5/less than 6.5/lessthan 7.3/greater than 7.3 (choose one)