A cell phone manufacturer claims that the population mean battery life of its flagship smartphone model, the Black Bear, is greater than the population mean battery life of the largest competitor, the Grizzly. A consumer advocacy publication tests this claim by purchasing a random sample of Black Bear smartphones and a random sample of Grizzly smartphones. Members of the publication charged each smartphone to full capacity and then had the smartphones play back the same videos until the batteries were completely depleted. The publication researched the population standard deviation of the battery life from the manufacturers. The population standard deviation for the Black Bear is assumed to be 0.71 hour, and the population standard deviation for the Grizzly is assumed to be 0.63 hour. The results of the battery life test are shown below. Let μ1 be the population mean battery life for the Black Bear and μ2 be the population mean battery life for the Grizzly. If the test statistic is z=1.38, what is the p-value for this hypothesis test?

Do not round your answer; compute your answer using a value from the table below.

The Great Depression was ended in the United States by:

1)the government running budget surpluses throughout the 1930s.
2)the government increasing the money supply throughout the 1930s.
3)central planning of the economy by the government.
4)the huge amounts of government spending required to fight WWII during the early 1940s.

The main difference between the classical model of the price level and the modern understanding of the relationship between the money supply, the price level, and real GDP is that according to classical economists, _____, while today's economists _____.

1)money is neutral in the long run; do not consider money to be neutral in the long run.
2)the adjustment of prices takes some time; expect changes in the money supply to be instantaneous.
3)did not consider money to be neutral in the long run; consider money neutral in the long run.
4)the adjustment of prices to changes in the money supply is instantaneous; argue that this adjustment process takes some time.

The main idea behind monetarism is that:

1)the aggregate output will be even greater than potential output if the money supply grows at a constant rate.
2)the aggregate price level will increase proportionally if the money supply grows at a constant rate.
3)the government budget will have a deficit if the government spending grows at a constant rate.
4)the aggregate output will grow steadily at a constant rate if the money supply also grows at a constant rate.

Explain how the hypothesis below came up/was developed based on the initial observations (see below).

Hypothesis: The recombinant-based assay for HCV will detect HCV antibodies in blood samples of people with hepatitis C or who are carriers of HCV, but not in non-HCV individuals.

Initial Observations:

I. Hepatitis is a general category of liver diseases. Several different viral agents have been found to infect the liver and cause inflammation and damage.

II. In the 1940s, researchers identified two forms of viral hepatitis. Infectious hepatitis, or hepatitis A, is transmitted by contact with feces from infected individuals. Serum hepatitis, or hepatitis B, is transmitted through the blood and other body fluids. The hepatitis B virus was isolated in the 1960s and the hepatitis A virus was isolated in the 1970s.

III. Following the isolation of these two viruses, assays were developed in order to identify individuals infected with hepatitis A or hepatitis B viruses.

IV. A form of hepatitis occurs in patients that test negative for hepatitis A or B. This form of hepatitis, initially called non-A, non-B hepatitis (NANBH) but now referred to as hepatitis C, represented greater than 90% of transfusion-associated hepatitis.

V. Hepatitis C causes chronic disease which can lead to cirrhosis of the liver and liver cancer.

VI. A recombinant-based assay for the hepatitis C virus (HCV) has been developed, using RNA isolated from the hepatitis C virus.

The kinetics of chymotrypsin were studied and yielded a KM of 5 mM and a Vmax of 0.2 mM/min. The enzyme concentration was 0.20 μg/ml. Calculate the turnover number, assuming one binding site per enzyme.

The human stomach has a maximum capacity of 4.2 quarts. If a raisin has a volume of 0.2 mL, how many raisins can fill the stomach? (1 qt = 0.946 L). Do not use scientific notation.

Chloropropionic acid, ClCH2CH2COOH is a weak monoprotic acid with Ka = 7.94 x 10-5 M. Calculate the pH at the equivalence point in a titration 34.8 mL of 1.09 M chloropropionic acid with 0.2 M KOH.

compute the first three iterations of the gradient ascent algorithm applied to the function f(x) = -0.2 + x + x^2 - 5.5x^3 +4x^4. Assume initial value for x0 = 0.11 and alpha = 0.1.

Fill in the blanks in the table below. Assume that the MPC is constant over everyone in the economy.