5.

California and Washington state both started reporting COVID-19 cases at approximately the same time. Suppose a researcher wants to study the fatality rate of diagnosed COVID-19 cases in the 2 states.

a. What null hypothesis should be used? Pick one and explain.

i. California has a higher fatality rate than Washington.
ii. California has lower higher fatality rate than Washington.
iii. California has a different fatality (possibly higher, possibly lower) rate than Washington. iv. California and Washington have the same fatality rate.

b. What alternate hypothesis should be used? Pick one and explain.

i. California has a higher fatality rate than Washington.
ii. California has lower higher fatality rate than Washington.
iii. California has a different fatality (possibly higher, possibly lower) rate than Washington. iv. California and Washington have the same fatality rate.

c. As of 3/24/2020, California had 2220 cases and 100 fatalities, compared to 111 fatalities in 2221 cases in Washington. Use your calculator to carry out a suitable hypothesis test. Report the p-value of the test, determine whether or not to reject the null, and state what should be concluded. Use ? = .05.

The next time the economy falls into a recession, there will be a spirited debate about whether the government should try to counteract the downturn, or whether it is better to let the economy run its course. Most likely, there will some action taken to try to improve the economy. Then the debate will turn to what tools the government should use to fight the recession. In this week's discussion we will focus on (1) what role the government should play in stabilizing the economy, and (2) what tools they should use if the government does step in. Please respond to the both of the following questions in your initial post:

1. Assume the economy has entered a recession and policymakers are debating whether to intervene or not. What are arguments in favor of and against active government intervention to fight recessions? Be sure rely the  economics we learned this week in your summaries.
2. Now assume that the decision has been made to try and fight the recession. Based on the economics we learned this week, provide a recommendation to policymakers about how they should fight the recession. That is, in your professional economic opinion, what is the best approach? You may want to consider the following in your response. Should we use fiscal policy, monetary policy, or both? Should we use tax cuts, increased spending, or both? Who should get the biggest tax cuts to stimulate the economy - poor vs rich, evenly across income groups? Be to explain why you believe your recommendation is the best, again, using the economics you have learned.

(cyber security )

• What is the difference between Cyber Espionage and Nation State Hacking? Explain the differences with the help of appropriate examples.

Please provide your own words. No copy from the internet. 150 to 200 words.

using the header:

#include <pthread.h>

// This is a header file for a Read/Right Lock Library. Your C code
//SHOULD access your routines using these exact function
// prototypes

typedef struct RW_lock_s
{
} RW_lock_t;

void RW_lock_init(RW_lock_t *lock);
/* This routine should be called on a pointer to a struct variable of RW_lock_t
to initialize it and ready it for use. */

void RW_read_lock(RW_lock_t *lock);
/* This routine should be called at the beginning of a READER critical section */

void RW_read_unlock(RW_lock_t *lock);
/* This routine should be called at the end of a READER critical section */

void RW_write_lock(RW_lock_t *lock);
/* This routine should be called at the beginning of a WRITER critical section */

void RW_write_unlock(RW_lock_t *lock);
/* This routine should be called at the end of a WRITER critical section */

and class:

#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include "RW_lock.h"

void RW_lock_init(RW_lock_t *lock)
{

}

void RW_read_lock(RW_lock_t *lock)
{
}

void RW_read_unlock(RW_lock_t *lock)
{
}

void RW_write_lock(RW_lock_t *lock)
{ pthread_mutex_lock(&(lock->g));
}

void RW_write_unlock(RW_lock_t *lock)
{
}

implement a reader writer lock in C

1. A, B, C. Each state issues licenses for private companies to operate savings banks within the state. For example, the NY State Banking Department issues licenses (also called "charters") that are mandatory to have before operating a savings bank within NY State.  Separatelyanswering as parts A, B and C, give and explain three different legal requirements in NY State to have a license to operate a savings bank.  
2. A, B, C. John Kenneth Galbraith described several historic episodes of asset markets going through boom and bust. One episode that he described was the stock market crash of 1929.  Separately answering as parts A, B and C, identify and explain three different causes of the crash of 1929. With each cause that you explain, include how it contributed to the 1929 stock market crash.

. Approximately 10% of all people are left-handed, then the rest of people are right-handed. Consider a group of 15 people, answer the following question: (You cannot use the binomial table for this problem) (a) State the random variable ?. (2 points) (b) Explain why this is a binomial experiment. There should be 4 conditions to check. (State the probability of left-handed people ?, the possible outcomes, and the number of trials ? in the conditions.) (4 points) (c) Find the probability that exactly three people are left-handed. (Round your answer to 4 decimal places) (6 points) (d) Find the probability that at least two people are left-handed. (Round your answer to 4 decimal places) (8 points)

If the average survival of a red cell in the human body is 120 days with a standard deviation of 8 days, what is the probability for each of the following events? Assume a normal distribution,

We have 3 bowls,

1) The first bowl contains 3 red and 2 green balls

2) the second bowl contains 2 red and 1 white balls

3) the third one contains 1 red and 3 green balls

One bowl by the random is selected and then 2 balls will be drawn. what is the probability that both of these balls will be red?

We have 3 bowls,

1) The first bowl contains 3 red and 2 green balls

2) the second bowl contains 2 red and 1 white balls

3) the third one contains 1 red and 3 green balls

One bowl by the random is selected and then 2 balls will be drawn. what is the probability that both of these balls will be red?