A microbiologist wants to estimate the concentration of a certain type of bacterium in a waste-water sample. She puts a 0.5 mL sample of the wastewater on a microscope slide and counts 39 bacteria. Estimate the concentration of bacteria, per mL, in this wastewater, and find the uncertainty in the estimate.

Q: 10.1 12.2 13.2 10.9 12.2 13.2

A: The one with a higher standard deviation is the one in which the data are more dispersed from the…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: The formula of the correlation coefficient is:

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: The objective of this question is to find the equation of the least squares line y = a + bx, where…

Q: Hurricanes Katrina and Rita caused the flooding of large parts of New Orleans, leaving behind large…

A:

Q: Twenty beluga whales were randomly chosen from the MacKenzie Delta. For each whale, liver selenium…

A: Regression line are used to predict the future value over the another. It is calculated to predict…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: We have to find correlation coefficient ( r ). Formula :

Q: x 5.75 6.25 6.75 7.75 8.25 y 31 26 38 74 72 ​ Find the value of the coefficient of…

A: It is an important part of statistics. It is widely used.

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: Data given Y:4,28,30,36,77  n=5

Q: The heights of a group of men averaged 69 inches and followed the normal curve. The 91st percentile…

A: Solution: Let X be the height of group of men. μ= 69 inches  Average height of men.  The 91st…

Q: Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in…

A: Given: μd= difference between  corneal thickness of normal eye – corneal thickness of eye with…

Q: 10a. If mKL = 146 and mLM = 68", %3D %3D find mZL. K M m²L=;

A:

Q: The rare earth element gadolinium is often used as a contrasting agent for MRIS. The concentration…

A:

Q: The following data are given for a biogas digester suitable for the output of six cows. The volume…

A: A biogas digester suitable for the output of six cows. The volume of digester is 8.4 m3 and the…

Q: Find the mean stem length of the pepper plants. (If necessary, round your answer to 3 places after…

A: Given that  The data are…

Q: The level of dissolved oxygen in a river is an important indicator of the water’s ability to support…

A: We have given that the 15 samples, randomly chosen locations along a stream and measure the…

Q: Estimate the p-value for Ho: μ = 40 vs. Ha: µ < 40, n = 8, tdata = -2.5. Select one: a. Between…

A: Given,           Population mean, Sample size, Test statistic,

Q: What percentage of the variation in y can be explained by the corresponding variation in x and the…

A: It is given that X be the elevation for an archaeological site in the southwestern United States Y…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Diastolic blood pressure in adults is normally distributed with m = 80 mm Hg and s = 12 mm Hg. In a…

A: The probability that diastolic blood pressure below 70 mm Hg is,

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: From the provided information, x y 5.75 31 6.25 26 6.75 38 7.75 74…

Q: best tools, pottery, and household items when they visited higher elevations for their summer camps.…

A: Given Enter the given data into Excel

Q: You think your car’s fuel efficiency is much lower than it should be. The average fuel efficiency of…

A:

Q: Jennifer wants to estimate the percentage of parents that use cloth diapers. She asks a randomly…

A: Solution: It is given that Jennifer wants to estimate the percentage of parents that use cloth…

Q: Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in…

A: Introduction: The output of a paired t-test is given.

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A:

Q: The label on a 200 gram chocolate bar says the chocolate bar has exactly 370 calories. However, it…

A:

Q: The data below give the concentration of thiol (NM) in the blood lysate for two groups of…

A: Provided sample observations: Normal Rheumatoid 1.85 2.81 1.9 2.85 2.35 4.08 1.45 3.95…

Q: The following data are given for a biogas digester suitable for the output of six cows. The volume…

A: Number of cows =6 Volume of digester =8.8 m3  Volume of gas holder =3 m3 Retention period =23 days…

Q: 1) Inspect the data and estimate the amount of blood lost due to one hookworm. (mL/day)

A: X Y (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 24 12.2 -26.83333 720.02778…

Q: Two experiments, Experiment 1 and Experiment 2, measure the same quantity Y 20 times. The…

A: a) Experiment Number of measurements (n)=20Mean (Average):Unbiased Standard Deviation:Experiment…

Q: Find the equation of the least squares liney=a+bx. Round a and b to three decimal places. O-83.789+…

A: Given that    X Y X \cdot YX⋅Y X^2X2   5.25 39 204.75 27.5625   5.50 54 297 30.25   5.75 31…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: The method of least squares  is a standard approach in regression analysis to approximate the…

Q: Test the claim that a population mean is more than 16. A random sample size 24 yields = 0.10, and…

A: Note: " Since you have posted many sub-parts. we will solve the first three sub-parts for you. To…

Q: Your teacher gives you your z score and expects you to find out your raw score for the first test.…

A: Solution: 1. From the given information, z=–1.23, µ=82 and σ=4.

Q: 9. Strength of concrete: The compressive strength, in kilopascals, was measured for concrete blocks…

A: Consider the following calculations: Batch After 6 days After 3 days Difference (After 6…

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.