researchers wish to test the effect of living environment on cholesterol level they take a sample of people from a rural area and a sample of people from an urban area and compare their cholesterol levels. what would be the best statistical test for them to utilize? group of answer choices two-sample t-test anova linear regression chi-square

Answers

Answer 1

Answer:

To test the effect of living environment on cholesterol levels using samples from rural and urban areas, the best statistical test to utilize would be the two-sample t-test.

The two-sample t-test is appropriate in this case because it compares the means of two independent groups (rural and urban residents) to determine if there is a significant difference between their cholesterol levels.

This test will help researchers determine if living environment has an impact on cholesterol levels.

To know more about statistical tests refer here :

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Mike bought an MP3 player for $150. The sales-tax rate was 8 percent. How much sales tax did he pay on the MP3 player?

Answers

.08 x 150 = 12, He paid $12 sales tax :)

8. ×150$=8×150=1200
-- ------- ------ 100. 100. 100
=12$
150$-12$
=138$

The ratio of the number of boys to the number of girls in a choir is 5 to 4. There are 60 girls in the choir. How many boys are in the choir?

Answers

Answer:

There are 48 boys in the choir

Step-by-step explanation:

Samuel earns $5 per hour plus 65% commission on all his sales. If y representshis sales for one day, which expression represents Samuel’s total earnings for a
day when he worked 6 hours?
A. 5(6) + 65y
B. 5(65) + 6y
C. 5(6) + 0.65y
D. 5(6) + 1.65y

Answers

Answer:

5(6)+0.65y

Step-by-step explanation:

$5(6hrs)+65÷100=0.65

5(6)+0.65y

Answer:

Step-by-step explanation:

The boiling point of krypton is -244 degrees Fahrenheit. The melting point Krypton is -251 Degrees Fahrenheit. What is the difference between the boiling point and melting point