Invertase is an enzyme that may aid in spore germination of the fungus Colletotrichum graminicola. A botanist incubated specimens of the fungal tissue in petri dishes and then assayed the tissue for invertase activity. The specific activity values for nine petri dishes incubated at 90% relative humidity for 24 hours are summarized as follows:
Mean=5,111 units And SD = 818 units

This question is incomplete, the complete question is;

Invertase is an enzyme that may aid in spore germination of the fungus Colletotrichum graminicola.

A botanist incubated specimens of the fungal tissue in petri dishes and then assayed the tissue for invertase activity.

The specific activity values for nine petri dishes incubated at 90% relative humidity for 24 hours are summarized as follows:

Mean = 5,111 units And SD = 818 units

Assume that the data are a random sample from a normal population. Construct a 95% confidence interval for the mean invertase activity under these experimental conditions.

95% confidence interval for the mean is ( 4482.2309, 5739.7691 )

Step-by-step explanation:

Given that;

mean x" = 5,111

standard deviation σ = 818

sample size n = 9  

df = 9-1 = 8

95% confidence interval; ∝ = ( 1-0.95) = 0.05

so

tₙ₋₁,∝/2 = t₉₋₁, 0.05/2 = t₈, 0.025

t₈, 0.025 =  2.306     { from table }

so at 95% confidence interval, μ will be;

x" ±  t₀.₀₂₅ × s/√n

we substitute

5111 ±  (2.306 × 818/√9)

5111 ±  (2.306 × 272.6666)

5111 ± 628.7691

⇒ 5111 - 628.7691, 5111 + 628.7691

⇒ 4482.2309, 5739.7691

Therefore, 95% confidence interval for the mean is ( 4482.2309, 5739.7691 )

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

rotation point l

step-by-step explanation: