= O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Hypothesis test for the population mean: t test using the critical... Yoko recently switched her primary doctor to one specializing in caring for elderly patients. On her new doctor's website, it says that the mean systolic blood pressure among elderly females is 115 millimeters of mercury (mmHg). Yoko believes the value is actually higher. She bases her belief on a recently reported study of 22 randomly selected, elderly females. The sample mean systolic blood pressure was 119 mmHg, and the sample standard deviation was 25 mmHg. Assume that the systolic blood pressures of elderly females are approximately normally distributed. Based on the study, at the 0.10 level of significance, can it be concluded that μ, the population mean systolic blood pressure among elderly females, is greater than 115 mmHg? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H. and the alternative hypothesis H₁. H₂: H₁:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 (d) Find the critical value. (Round to three or more decimal places.) n H Ix O S 0-0 0≤D X P D G 05 Nada Español 21

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O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING
Hypothesis test for the population mean: t test using the critical...
Yoko recently switched her primary doctor to one specializing in caring for elderly patients. On her new doctor's website, it says that the mean systolic blood
pressure among elderly females is 115 millimeters of mercury (mmHg). Yoko believes the value is actually higher. She bases her belief on a recently reported
study of 22 randomly selected, elderly females. The sample mean systolic blood pressure was 119 mmHg, and the sample standard deviation was 25 mmHg.
A
Assume that the systolic blood pressures of elderly females are approximately normally distributed. Based on the study, at the 0.10 level of significance, can it
be concluded that u, the population mean systolic blood pressure among elderly females, is greater than 115 mmHg?
Perform a one-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.)
(a) State the null hypothesis H and the alternative hypothesis H₁.
Ho:
H₁ : 0
(b) Determine the type of test statistic to use.
(Choose one) ▼
(c) Find the value of the test statistic. (Round to three or more decimal places.)
0
(d) Find the critical value. (Round to three or more decimal places.)
7
Explanation
FI
N
(e) Can it be concluded that the mean systolic blood pressure among elderly
females is greater than 115 mmHg?
Yes No
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Transcribed Image Text:esc alt option A Q O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Hypothesis test for the population mean: t test using the critical... Yoko recently switched her primary doctor to one specializing in caring for elderly patients. On her new doctor's website, it says that the mean systolic blood pressure among elderly females is 115 millimeters of mercury (mmHg). Yoko believes the value is actually higher. She bases her belief on a recently reported study of 22 randomly selected, elderly females. The sample mean systolic blood pressure was 119 mmHg, and the sample standard deviation was 25 mmHg. A Assume that the systolic blood pressures of elderly females are approximately normally distributed. Based on the study, at the 0.10 level of significance, can it be concluded that u, the population mean systolic blood pressure among elderly females, is greater than 115 mmHg? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H₁. Ho: H₁ : 0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 (d) Find the critical value. (Round to three or more decimal places.) 7 Explanation FI N (e) Can it be concluded that the mean systolic blood pressure among elderly females is greater than 115 mmHg? Yes No @ 2 W A S Check F2 af H command 20 # 3 E F3 D $ X 6 ALEKS-... 4 988 FA DOD R F % 5 V www-awu.aleks.com FS T G A 6 MacBook Air Fo Y B & 7 H H X ☐☐ 44 ローロ OSO 020 X F7 O U N S O<O * ➤11 8 P Ś 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility J p O>O FB 1 ▶19 ( 9 M K O 1 0 < I F10 L P 4) command FII : ; + Nada V ( = Español 4) 12 ? 8 alt "1 D . ? 1 option
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