A random sample of 50 batteries is selected and subjected to a life test. We found the following life time, in hours: 3.64 3.77 3.92 3.98 4.01 4.04 4.08 4.12 4.2 4.38 3.67 3.82 3.92 3.99 4.02 4.04 4.09 4.15 4.2 4.4 3.73 3.84 3.95 3.99 4.02 4.05 4.1 4.16 4.25 4.44 3.75 3.87 3.95 3.99 4.03Required:a. Design a test to support the claim that the mean battery life exceeds 4 hours, with a level of significance of α = 0.05. b. What is the null distribution? c. What is the acceptance region and the P-value? d. Is there enough evidence to support the claim? e. Construct, from the sample, a one-sided (lower bound) confidence interval for the mean μ. Compare your results with the claim.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

hello umm i don't understand your question can you explain it more pls

step-by-step explanation:

answer: idk

step-by-step explanation: