
STATISTICS AND PROBABILITY (4th Quarter)
Quiz by CRISTINA EREDIA
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It is a tentative statement or explanation of a phenomenon.
If the assumed hypothesis is tested for rejection considering it to be true is called?
Which of the following statement whose validity is tested based on a sample?
If the null hypothesis is false, then which of the following is accepted?
If a Null Hypothesis is accepted, then the value of Test statistic lies in what region?
The average age of Grade 11 students is 13 years old.
The mean content of citric acid in a bottle of juice drinks is greater than 2ml.
The average monthly salary of Filipino teachers is less than ₱16,000.
The mean of weight of newborn babies is at least 0.5kg.
The average IQ of Grade 11 students is less than 110.
It is used when n ≥ 30, or when the population is normally distributed and the standard deviation is known.
A statistical procedure that is used to know the mean difference between the sample and the known value of the population mean based from an interval or ratio scale. The sample size should be less than 30 (n < 30).
What is the z - value of the following given: µ = 100; σ = 2; x̄= 100.5; n = 80?
What is the z - value using the following given: µ =87; σ2 = 25; x̄= 86.2; n = 33?
What is the value of t when n = 25, α = 0.05?
Determine the value of t when n = 4 and α = 0.025.
What is the t-value of the following given: µ =42; s = 5; x̄= 43; n = 20?
Find the t-value when: µ = 67.2; s2 =4; x̄= 68.5; n = 11.
Suppose that the z is the test statistic for hypothesis testing,calculate the valueof z for each given: µ = 50; σ = 4; x̄= 51; n = 80.
Find the value of z using the given: µ = 75; σ = 6; x̄=78.5; n = 30.
What decision should be made when zcomputed =2.340 and zcritical = 1.980?
If zcomputed = 1.236 and zcritical = 1.502, what decision should you made?
The treasurer of a municipality claims that the average net worth offamiliesliving in this municipality is Php 730,000. A random sample of 50 familiesselectedfrom this area produced a mean net worth of Php 860,000 with standard deviationof Php 65,000. Using 1% significance level, can we conclude that the claim istrue?Â
What is the null hypothesis (Ho)and the alternative hypothesis (Ha)?
Refer to problem no. 23, what is the critical value?
Refer to problem no. 23, will you accept the Ho?