Answer:
The correct set of hypotheses is
: d=80 degrees
: d>80 degrees
Step-by-step explanation:
The weatherman claims that the average temperature during July in Chattanooga is 80 degrees or less. To test this claim, following hypotheses need to be taken:
Let d be the the average temperature during July in Chattanooga, then
: d=80 degrees
: d>80 degrees
Answer:
x = any number greater than 5
Step-by-step explanation:
8 x 5 is 40 so any number greater than 5 would work for this inequality.
Answer:
3/8
Step-by-step explanation:
choices: 6,7,8,9 total: 4
odd numbers: 7,9 total :2
P(odd number) = number of odds/ total
=2/4 = 1/2
Then we spin again
choices: 6,7,8,9 total: 4
number greater than 6: 7,8,9 total :3
P(odd number) = number greater than 6/ total
=3/4
P(odd, > 6) = P(odd, >6) = 1/2 *3/4 = 3/8
Answer:
Margin of Error = 1.0% to the nearest tenth of a percent.
Step-by-step explanation:
Margin of Error is the width of the confidence interval about the mean.
It is given mathematically as,
Margin of Error = (Critical value) × (standard Error)
Critical value is obtained from the z-tables at the popular confidence level of 95% and z-tables is used because the sample size, 4530, is large enough to approximate the population properties.
Critical value = 1.960
Standard error = σₓ = √[p(1-p)/n]
p = 87% = 0.87
n = sample size = 4530
σₓ = √[0.87×0.13)/4530]
= 0.0049966876
Margin of Error = 1.96 × 0.0049966876 = 0.0097935078 = 0.00979 = 0.979% = 1.0% to the nearest tenth of a percent.
Hope this Helps!!!