Answer:
The Number of servings = 2 and the cost unit rate is 2.50
Step-by-step explanation:
When you look at the table, the number of servings counts by 2s and the cost($) counts by 2.50.
The population of interest is b americans who use social media
Answer: This answer for this is A
Step-by-step explanation: Hope this help :D
Answer: We are 95% confident that the mean SPF level of sunscreen used by all Cal Poly students is between 29.0813 and 40.0187.
Step-by-step explanation:
Given : Significance level :
Sample size : n= 52 , which is a large sample (n>30), so we use z-test.
By using z-value table,
Critical value:
Sample mean :
Standard deviation :
The confidence interval for population means is given by :-
i.e.
Now, the 95% confidence interval for the ppopulation mean = . (29.0813, 40.0187)
Hence, We are 95% confident that the mean SPF level of sunscreen used by all Cal Poly students is between 29.0813 and 40.0187.
Answer:
The amount left after each friend got $46.
Step-by-step explanation:
Any time you see R1 in bus stop method division, it just means remainder. So dividing 93 dollars between 2 friends gives them both 46 dollars, with one left over!
Hope this helps :)