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According to a certain life insurance company’s claim data the mean hospital and physician’s charges for coronary bypass surgery are R49 420 for the Limpopo Province and R52 380 for the Western Cape. The two means are based on a sample of 55 claims for the Limpopo Province and a sample of 186 claims from the Western Cape. Assume that the population standard deviations for these two provinces are R1300 and R1450 respectively. Test at 1% significance level if the mean charges for such surgeries in the LP are lower that that of the WC. Calculate the Test statistic a. -15.901 b. -2960 c. 14.438 d. 14.834

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b/ $ \int_{1}^{2} \frac{d x}{\sqrt{x^{2}-1}} $;

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8. What is the significance of the P-N junction in semiconductor devices?

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Which System Configuration utility tab contains an Application Management option? (Refer to Lab 16.15, Step 12) Group of answer choices Boot Startup General Services

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QUESTION 9 What hormone is produced by the ovaries and is responsible for regulating the menstrual cycle and secondary sexual characteristics? A. Progesterone B. Estrogen C. Prolactin D. Testosterone

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5. Find the volume of the solid generated by revolving the region enclosed by the following curves. (a) $ y=4-2 x^{2}, y=0, x=0, y=2 $, through $ 360^{\circ} $ about the $ y $-axis. (b) $ x=\sqrt{x+9}, x=0, y=1 $, through $ 360^{\circ} $ about the $ y $-axis. (c) $ x=y^{2}, y=2, x=0, y=6 $, through $ 2 \pi $ radians about the $ y $-axis. (d) $ y^{2}=x-2, y=2, y=-3 $ through $ 360^{\circ} $ about the $ y $-axis.

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Suppose a technological advance causes an increase in the supply of robots (capital) that can cook hamburgers. We would expect that A. the demand curve for all capital will shift to the right B. the demand for every kind of labor will decrease C. the demand for workers who are substitutes for this kind of capital will decrease D. the demand for workers who are complements with this kind of capital will decrease

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A 27-year-old patient, now G2P2, has had an emergency cesarean birth secondary to fetal distress. She is not on the postpartum unit 12 hours after birth. Subjective data: Her first birth was a routine vaginal birth with no complications. Patient states she is itching and nothing is helping to stop the itching. Objective data: Vital Signs: T 99.4°F (37.4°C), P 85, R 12, BP 128/78 Uterus Firm, Midline, at U Lochia is rubra and small in amount Bladder: voiding independently, Foley catheter removed 4 hours prior Surgical incision with dressing covering, no drainage noted All other assessments Within Normal Limits What additional assessments are required based on the use of epidural opioids?

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What is the purpose of a default gateway? What is the consequence for a host if no default gateway is set?

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You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. $H_0: \mu_1 - \mu_2 \leq 0$ $H_a: \mu_1 - \mu_2 > 0$ The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 $n_1 = 40$ $n_2 = 50$ $\bar{x}_1 = 25.6$ $\bar{x}_2 = 22.8$ $\sigma_1 = 5.6$ $\sigma_2 = 6$ (a) What is the value of the test statistic? (Round your answer to two decimal places.) (b) What is the p-value? (Round your answer to four decimal places.) (c) With $\alpha = 0.05$, what is your hypothesis testing conclusion? Reject $H_0$. There is insufficient evidence to conclude that $\mu_1 - \mu_2 > 0$. Do not Reject $H_0$. There is sufficient evidence to conclude that $\mu_1 - \mu_2 > 0$. Do not reject $H_0$. There is insufficient evidence to conclude that $\mu_1 - \mu_2 > 0$. Reject $H_0$. There is sufficient evidence to conclude that $\mu_1 - \mu_2 > 0$.

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douglas e.