WorksheetsSTATISTICS-STEM-ANHS
Total questions: 10
Worksheet time: 2mins
It is also called an alpha error.
Type I
Type II
Type III
Type IV
When the given statistics hypothesis assumes a less than or greater than value, it is called__
hypothesis
conjecture
null hypothesis
alternative hypothesis
Which of the following must be used as the significance level if we want a lower possibility of correct decision?
1%
2%
5%
10%
Which is the parameter in the given situation below? “The average age of 10 college students is 24 years.”
10 college students
average age of college students
age of students is 24 yrs. old
the average age of 10 college students
Grade 11 students from different schools were tested. The number is based on different schools' population. What sampling technique is appropriate?
cluster
stratified
simple
systematic
A motorcycle manufacturer advertises that its new subcompact models get 47 mpg. If μ is the mileage of these cars, what kind of parameter is used?
population variance
population proportion
population mean
population standard deviation
The sign of the alternative hypothesis in a left-tailed test is always ________
greater than
less than
greater than or equal to
less than or equal to
Consider this statement: “New cars are expected to last an average of at least three (3) years before needing major service.” Which of the following is the null hypothesis
𝐻𝑜: µ ≤ 3
𝐻𝑜: µ < 3
𝐻𝑜: µ > 3
𝐻𝑜: µ ≥ 3
In a commercial, a new diet program would like to claim that their methods result in a mean weight loss of more than 22kgs in two (2) weeks. To determine if this is a valid claim, they hire an agency that then selects 25 people to be placed on this diet. What is the test of hypothesis?
null
alternative
one-tailed test
two-tailed test
What statistic is used when the sigma is unknown
normal distribution
z score
t-test
f-test
