Blog

The average cost of a men’s haircut in Los Angeles County is $18 with a standard deviation of $6. Assume the data follows a normal distribution. From a sample of 30 barbershops in the West Hollywood area of Yelp, it was found that the average cost of a men’s haircut was $22 with a standard deviation of $8. Is there enough evidence to suggest that an average men’s haircut is not $22? Test the claim with a level of significance = 0.05.    The population parameter in this problem =  [ans1] The standard deviation associated with the statistic in this problem =  [ans2]   Step 2:  Test the Claim What type of test score should you convert the statistic into?  [ans3]   Which formula below would you use to calculate the test score?  [ans4]   What is the value of that test score?   [ans5]   What is the value of the critical score?   [ans6]   

When the alternative hypothesis is true and your conclusion is to reject the null, what type of error is this?   [ans1]   When the null hypothesis is false and your conclusion is to reject the null, what type of error is this?   [ans2]   When the null hypothesis is false and your conclusion is to fail to reject the null, what type of error is this?   [ans3] 

Match the part of the stethoscope used to hear the types of sounds.

The nurse assesses an open wound on the medial malleolus of a client’s lower leg. The wound bed is shallow, moist with yellow exudate, and has irregular borders. The surrounding skin exhibits brownish discoloration. Which condition does the nurse suspect?

The nurse is unable to palpate the dorsalis pedis or posterior tibial pulses in a client with severe pretibial edema. Which action should the nurse take next?

A patient complains of aching leg pain that is worse at the end of the day. He has noticed over the years his legs have become suntan (darker) looking. Which health problem does the nurse suspect?

An older adult is at the clinic for a “check-up.” The nurse assesses the lower extremities. The dorsalis pedis and post tibial pulses are not palpable. What is the best nursing action?

This was the Korean alphabet, introduced by King Sejong in 1446.

i.   Which statement below is FALSE regarding the possible value of X as it relates to a probability distribution table:      Type in the correct letter from the choices below:  [ans1]      a.  It can be negative.                       b.  It can be a decimal.      c.  All X values must add up to 100.               d.  You can have repeat values occur.   ii.  Which statement below is FALSE regarding the possible value of P(X) as it relates to a probability distribution table:      Type in the correct letter from the choices below:  [ans2]      a.  It can be negative.                      b.  It can be a decimal.      c.  All P(X) values must add up to 1.            d.  You can have repeat values occur.   For the probability distribution table shown below, calculate the expected value and standard deviation.  iii.   expected value =  [ans3] iv.   standard deviation =   [ans4]  

Given binomial distribution: The probability that you will wake up each day before your alarm clock is 0.32.    Choose the expression that best represents the answers to the scenarios below. a.  Find the probability that you will wake up before your      alarm MORE THAN 3 out of the next 7 days.  [ans1] b.  Find the probability that you will wake up before your      alarm clock EXACTLY 3 out of the next 7 days.  [ans2] c.  Find the probability that you will wake up before your alarm clock      on Mon, Tues, Wed but not on Thurs, Fri, Sat, Sun.  [ans3]   d.  Find the probability that you WILL NOT wake up before your alarm      clock AT MOST 3 out of the next 7 days.  [ans4] e.  Find the probability that you will wake up before your       alarm clock LESS THAN 3 out of the next 7 days.  [ans5] f.  Find the probability that you will wake up before your     alarm clock AT LEAST once out of the next 7 days.  [ans6]