Can someone help me An organism's energy, nutrient and survival requirements are aspects of its: habitat population ecosystem niche

David invested $220 in a savings account that offers a 3% return on the investment. The value of David's investment will be at least $400 after a period of ________ years. Hint: Use the formula A = P(1 + r)t, where A is the amount after t years, P is the amount invested, r is the rate of interest, and t is the time period.
Use a calculator to compute the answer, and round it off to the nearest year.

How are salts formed?A) By the covalent bonding of neutral atoms.

B) By the covalent bonding of oppositely charged ions.

C) By the ionic bonding of a cation and an anion.

D) By intermolecular hydrogen bonding.

Single-celled organism can get the oxygen they need across their cell membranebecause...

A. they have a small surface area to volume
ratio to allow sufficient transport of molecules into and out of the cell

B. they have a large surface area to volume
ratio to allow sufficient transport of molecules into and out of the cell

Photosynthesis uses sunlight to convert water and carbon dioxide into

Why are vaccines not convenient for everyone?

A marine biologist wants to estimate the average weight of a population of dolphins living in a certain region of the ocean. The biologist will collect a random sample of dolphins and use the sample weights to create the estimate Which of the following is an appropriate method for the biologist to use for inference to the population? A A one-sample t-interval for a population mean B A one-sample t-interval for a sample mean C A one-sample 2-interval for a population proportion D A matched-pairs t-interval for a mean difference E A two-sample t-interval for a difference between means Log in to add comment jordanmcdevitt8545 is waiting for your help. Add your answer and earn points. Expert-Verified Answer 5 people found it helpful joaobezerra Genius 27.1K answers 196.2M people helped Answer: A A one-sample t-interval for a population mean Step-by-step explanation: The biologist will collect a random sample of dolphins and use the sample weights to create the estimate. In a confidence interval, we take the data from the sample and want to estimate it for the entire population, so t Get more Answers for FREE Snap questions with the app, get community help, find expert textbook explanations, and see instant step-by-step math solutions. Why am I seeing this? By creating an account, you accept the Brainly Terms of Service⬈(opens in a new tab) & Privacy Policy⬈(opens in a new tab). Already have an account? Log in by watching video 5.0 (3 votes) Advertisement Still have questions? Get more Answers for FREE Snap questions with the app Get help from the community Find expert explanations for textbooks View instant step-by-step math solutions Already have an account? Log in You might be interested in mariammazen2000 asked 04/05/2020 : Concerning the sampling distribution of the sample mean: • Generate a population consisting of 6 observations representing students’ scores in a certain course. Select a sample of 2 observations. 1. Prove that the mean of the sample mean equals the population mean. 2. Prove that the variance of the sample mean equals the population variance divided by n. 3. Construct a 95% confidence interval for the population mean. See answers (1) miqb24 asked 05/07/2020 A sociologist is studying the social media habits of high school students in a school district. The sociologist wants to estimate the average total number of minutes spent on social media per day in the population. A random sample of 50 high school students was selected, and they were asked, "How many minutes per day, on average, do you spend visiting social media sites?" Which of the following is the most appropriate inference procedure for the sociologist to use? A one-sample z-interval for a population proportion A A one-sample t-interval for a population mean B A matched-pairs t -interval for a mean difference C A two-sample z-interval for a difference between proportions D A two-sample t-interval for a difference between means See answers (2) 4.2/5 7 hiyalol2973 asked 03/10/2020 A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is σ = 15. a. Compute the 95% confidence interval for the population mean. b. Assume that the same sample mean was obtained from a sample of 120 times. Provide a 95% confidence interval for the population mean. c. What is the effect of a larger sample size on the interval estimate? See answers (1) 2 miqb24 asked 04/25/2020 Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater than 2 feet. In population E, 20 percent of the turtles have a shell length greater than 2 feet. From a random sample of 40 turtles selected from D, 15 had a shell length greater than 2 feet. From a random sample of 60 turtles selected from E, 11 had a shell length greater than 2 feet. Let pˆD represent the sample proportion for D, and let pˆE represent the sample proportion for E. Question 2 (b) What are the mean and standard deviation of the sampling distribution of the difference in sample proportions pˆD−pˆE ? Show your work and label each value. (c) Can it be assumed that the sampling distribution of the difference of the sample proportions pˆD−pˆE is approximately normal? Justify your answer. (d) Consider your answer in part (a). What is the probability that pˆD−pˆE is greater than the value found in part (a)? Show your work See answers (1) 5/5 12 New questions in Mathematics helppp need aswer soon A cylinder has a radius of 3 cm and a height of 6 cm. Use the formula V cylinder. Round your answer to the nearest whole number if you don't know this circumference but you do know that 75% of the circumference is 6 in what would circumference be​ Quantitative data can be ___ O discrete O continuous O discrete or continuous O none of the above 13. If 30% of the pupils in a school are boys, what percentage of the pupils are girls? ​ Pls help me find the surface are and volume Previous Next Ask your qu