Robin has 43 toys in her toy chest. She has 17 more toys than Kayla. How many toys does Kayla have ?
2 answers:
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Answer:
Step-by-step explanation:
GIVEN: A bag contains red
green
orange and
purple candies, without looking Ann pulls one piece of candy out of the bag.
TO FIND: what is the probability that she pulls out a purple piece of candy.
SOLUTION:
Total number of candies in the bag
Total number of purple candies in the bag
Now,
Probability that Ann pulls out a purple piece of candy
putting values,
Hence, the probability that she pulls out a purple piece of candy is
Answer: (A) H0: μ = 140 mg vs. H1: μ ≠ 140 mg
Step-by-step explanation:
Usually null hypothesis represents the claim that the values associated to the groups being tested have no statistical difference but alternative hypothesis supports the claim that there is statistical difference.
Let be the population mean .
We are given that the mean potassium content of a popular sports drink is listed as 140 mg in a 32-oz bottle.
i.e. Null hypothesis :
Alternative hypothesis for two tail hypothesis has sign (≠).
i.e. Alternative hypothesis :
∴ The hypotheses for a two-tailed test of the claimed potassium content:
H0: μ = 140 mg vs. H1: μ ≠ 140 mg