A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes that the pulse rate for smokers and non-smokers is different and wants to test this claim at the 0.05 level of significance. A sample of 74 smokers has a mean pulse rate of 86, and a sample of 56 non-smokers has a mean pulse rate of 85. The population standard deviation of the pulse rates is known to be 6 for smokers and 10 for non-smokers. Let ?1 be the true mean pulse rate for smokers and ?2 be the true mean pulse rate for non-smokers. Step 1 of 5:State the null and alternative hypotheses for the test.
Step 2 of 5: Compute the value of the test statistic. Round your answer to two decimal places.
Step 3 of 5: Find the p-value associated with the test statistic. Round your answer to four decimal places.
Step 4 of 5 : reject or fail to reject null hypothesis
Step 5 of 5:State the conclusion of the hypothesis test.
a. There is sufficient evidence to support the claim that the mean pulse rate for smokers and non-smokers is different.
b. There is not sufficient evidence to support the claim that the mean pulse rate for smokers and non-smokers is different.

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step-by-step explanation:

think about the doctor who treated the major and the speaker in the short story "in another country." put yourself in the shoes of the doctor, and based on what you read in the story, write what you think his thoughts about the major and the speaker would be. use the following vocabulary in your response and change the form of these words as needed: detached resign withered

v=1788.75

step-by-step explanation:

i belive that is the answer

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200