The following shows a portion of the monthly returns data (in percent) for 2010-2016 for two of Vanguard's mutual funds: the Vanguard Energy Fund and the Vanguard Healthcare Fund. [You may find it useful to reference the t table.]

DATE : ENERGY : HEALTHCARE : (Jan-10, -4.95, -0.19); (Feb-10, 1.8, 0.39); (Mar-10, 2.47, 1.18); (Apr-10, 3.14, -3.8); (May-10, -11.5, -5.09); (Jun-10, -5.95, -0.63); (Jul-10, 8.83, 1.47); (Aug-10, -5.84, -1.1); (Sep-10, 10.13, 8.32); (Oct-10, 3.98, 2.37); (Nov-10, 2.81, -2.41); (Dec-10, 5.71, 1.00); (Jan-11, 6.42, 1.74); (Feb-11, 5.7, 2.99); (Mar-11, 1.37, 1.17); (Apr-11, 1.73, 5.69); (May-11, -4.22, 2.41); (Jun-11, -1.98, -0.59); (Jul-11, 1.19, -2.75); (Aug-11, -10.42, -2.61); (Sep-11, -14.9, -3.89); (Oct-11, 18.74, 4.64); (Nov-11, 0.82, -0.21); (Dec-11, -8.49, -3.08); (Jan-12, 4.28, 2.42); (Feb-12, 4.91, 1.56); (Mar-12, -6.51, 3.62); (Apr-12, -1.72, -0.47); (May-12, -12.15, -3.48); (Jun-12, 5.44, 5.45); (Jul-12, 2.8, 0.31); (Aug-12, 2.83, 1.88); (Sep-12, 2.98, 3.93); (Oct-12, -0.96, -0.73); (Nov-12, -2.8, 0.41); (Dec-12, 2.2, -3.28); (Jan-13, 5.74, 6.47); (Feb-13, -2.02, 1.3); (Mar-13, 1.59, 3.6); (Apr-13, -0.15, 2.99); (May-13, 1.69, 1.42); (Jun-13, -3.49, 0.22); (Jul-13, 5.31, 5.54); (Aug-13, -0.21, -1.92); (Sep-13, 2.95, 4.1); (Oct-13, 4.57, 3.97); (Nov-13, -0.82, 5.2); (Dec-13, -1.74, -4.7); (Jan-14, -5.1, 2.25); (Feb-14, 5.86, 8.54); (Mar-14, 1.88, -5.98); (Apr-14, 5.46, -3.1); (May-14, 1.3, 3.73); (Jun-14, 5.5, 3.35); (Jul-14, -4.72, 0.04); (Aug-14, 1.7, 3.94); (Sep-14, -7.23, -0.19); (Oct-14, -4.95, 5.45); (Nov-14, -9.09, 3.4); (Dec-14, -9.73, -8.36); (Jan-15, -4.11, 1.95); (Feb-15, 5.05, 4.8); (Mar-15, -2.6, -0.35); (Apr-15, 10.52, -0.73); (May-15, -6.62, 4.71); (Jun-15, -4.17, -0.26); (Jul-15, -7.59, 2.64); (Aug-15, -4.87, -5.79); (Sep-15, -7.64, -5.8); (Oct-15, 10.79, 5.87); (Nov-15, -1.03, 1.47); (Dec-15, -11.59, -3.91); (Jan-16, -1.2, -8.79); (Feb-16, -2.52, -1.84); (Mar-16, 12.63, -0.42); (Apr-16, 12.63, 2.56); (May-16, -1.55, 2.52); (Jun-16, 3.62, -0.11); (Jul-16, -1.08, 5.28); (Aug-16, 2.42, -4.97); (Sep-16, 2.35, 0.54); (Oct-16, -3.06, -7.51); (Nov-16, 6.9, 1.48); (Dec-16, -0.8, -5.15)

a. Calculate the sample correlation coefficient Rxy. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)

Sample Correlation Coefficient = _________

b. Calculate the value of the Test Statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)

Test Statistic = _________

(I can attach the spreadsheet in a comment. It made it too long to post as one question.)

A Gallup poll was conducted in 2010 in which they surveyed people all over the world and found that 44% of adults in the world believe that global warming is a serious threat to themselves and their families. Assume that this is the population proportion of adults worldwide who believe global warming is a threat (p= 0.44), and suppose we repeatedly select random samples of size 250, and ask them the same question.

(a) Find the mean, and standard error, of the sampling distribution of sample proportions for the given n and p.

(b) Use the Empirical Rule to find the interval centered at p that contains approximately 99.7% of all sample proportions.

(c) Suppose that in a random sample of 250 people, 100 say that global warming is a threat. Find the sample proportion � and the z-score for this sample proportion.  

(d) What is the probability that in a random sample of 250 people, 100 or less will say they think global warming is a threat?

The Patient Protection and Affordable Care Act (PPACA) was passed into legislation in March of 2010. Identify the impact of this legislation on your nursing practice by choosing two key nursing provisions outlined in the topic material "Nursing and Health Reform." Discuss how these two provisions have impacted, or will impact, your current practice of nursing.

74% of freshmen entering public high schools in 2006 graduated with their class in 2010. A random sample of 81 freshmen is selected. Find the probability that the proportion of students who graduated is greater than 0.750 . Write only a number as your answer. Round to 4 decimal places (for example 0.1048). Do not write as a percentage.

The equity section of the balance sheet of the Guts Company on December 31, 2010 shows following items:

REQUIRED

1) The book value per share of ordinary stock is
        a.223.65 b. 224.78   c.223.70   d.121
2.) Assuming the preference share is participating, the book value per share of ordinary stock is
        a.204.35   b.187.56    c.223.70    d. 187.56

In 2010, 76.3% of college students enrolled in an education major were female. A sample of students enrolled in an education major in 2019 consisted of 115 females and 70 males.

Would this data be sufficient at the 0.01 level of significance to conclude that the percentage of females enrolled in an education major decreased from the 76.3%?

Use the P-Value Method of Testing.

In your work space below, you will need to have -
1. The null hypothesis, Ho
2. The alternative hypothesis, H1
3. The test statistic
4. The type of test(left, right, two-tailed) and the p-value
5. The decision to accept Ho or reject Ho

In​ 2010, a survey of 2000 homes in a region found that 500 had overestimated market values. Suppose you want to estimate​ p, the true proportion of homes in this region with market values that are overestimated.

The point estimate is 0.25

1) Find a 90​% confidence interval for p.

2) Give a practical interpretation of the confidence​ interval

3) Suppose a researcher claims that p equals= 0.18. Is the claim​ believable? Explain.

One of the main goals of the ACA (Patient Protection and Affordable Care Act of 2010, aka Obamacare) was to provide affordable health care to the uninsured.
1. What were the THREE primary pieces of the law that were meant to provide coverage for everyone (other than undocumented immigrants, who were not going to be covered)?
2. Which of these three pieces was not able to be fully enacted because of a Supreme Court case in 2012 (ruled unconstitutional) and what happened to coverage for the targeted group?

The number of cell phone subscribers in the United States between the years 2000 and 2010 is approximated by the function N(t) = 385.474 1 + 2.521e−0.214t (0 ≤ t ≤ 10) where N(t) is measured in millions and t is measured in years, with t = 0 corresponding to the year 2000.† How many cell phone subscribers were there in the United States in 2000? (Round your answer to one decimal place.) million subscribers.

If the trend continued, how many subscribers were there in 2011? (Round your answer to one decimal place.) million subscribers