Aresearch scientist wants to know how many times per hour a certain strand of bacteria reproduces. the mean is found to be 10.3 reproductions and the population standard deviation is known to be 2.1. if a sample of 728 was used for the study, construct the 99% confidence interval for the true mean number of reproductions per hour for the bacteria. round your answers to one decimal place.

Confidence interval for the true mean number of reproductions per hour for the bacteria is (10.1,10.5).

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 10.3

Population standard deviation, σ = 2.1

Sample size, n = 728

Alpha, α = 0.01

Confidence interval:

Putting the values, we get,

i wish i could u

step-by-step explanation:

i wish i could u

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)