Null Hypothesis
Null Hypothesis is Represented by which symbol?
H-null or H-zero or H0
Alternative Hypothesis is represented by which symbol?
HA
P-value represents the proportion the percent of an event occuring
(A).True
(B).False
(A).True
An outlier is _______________
Significant
Which confidence interval is considered the normal range?
the 95% confidence interval
If the null hypothesis is rejected then which hypothesis is accepted?
Alternate hypothesis
What is the alternate hypothesis to the statement "On average babies drink 12 ounces of milk a day"?
HA :
mu !=12
P-values are considered outliers if they are more than 0.05 or (5%)
(A).True
(B).False
(B).False
If a sample proportion is ______________we accept the null
not significant
How many standard deviations from the mean is the 68% confidence interval
1 standard deviation
We assume the null hypothesis is true at the start until proven to be unlikely or false.
(A) True
(B) False
(A) True
What is the Alternative Hypothesis for the statement "More than 90% of teens use at least one social media platform"
mu<90%
In conducting research, it is often possible to collect data about the whole population of interest.
(A).True
(B).False
(B).False
A p-value that is less than 0.05 is ___________
significant
Three standard deviations from the mean is the __% confidence interval
99.7%
Which of these is a correct null hypothesis for the statement? The average ounces of milk babies drink is 12 ounces.
(A).H0: μ = 12
(B).H0: μ > 12
(C).H0: μ < 12
(A).H0: μ = 12
True or false: a sample proportion outside the 95% confidence interval means the alternate hypothesis is not likely?
False.
The p-value tells you the ________under the tail of the normal curve
proportion
A z-score that is less than 2 standard deviations from the mean is __________________
not significant
If the average is 10 inches and the standard deviation is 1.5 inches , what percent lies between 7 and 11.5 inches?
81.5%
The smaller the p-value, the more likely that Hₒ is false, providing stronger support for rejecting it and enhancing the probability of accepting HA as correct.
(A).True
(B).False
(A).True
In order to accept the alternative hypothesis, z-scores need to be ___________________________
More than 2 standard deviations from the mean
A normal smartphone battery manufacturer claims that the mean life of a certain type of battery is more than 650 hours. What is the null hypothesis?
H0:
mu >= 650
If a sample proportion is inside the the 95% confidence interval then it is __________and we_________the null hypothesis
not significant accept
What percent lies under the entire normal curve?
100%