Math Answers

Samples of three cards are drawn at random from a population of eight cards numbered from 1 to 8.

The leader of the Factory Worker claims that the average pay of factory workers in

Marikina City is less than 500 php. A random sample of 16 factory workers was

interviewed and resulted on the average of 350 php. Using a significance level of

0.05 and standard deviation of 92. Determine if there is sufficient evidence that the

claim is true.

p=0.64

a=0.05

n=180

what is the point estimate of p?

what is the interval estimate of p?

Find the area, take the elements of the area parallel to the x-axis. y=2x³-3x²-9x; y=x³-2x²-3x..

The head of the PE Department of a certain high school claims that the mean height ofGrade 7 students is 163 cm. The mean height of 45 randomly selected Grade 7 studentsis 161 cm. Using 0.01 significance level, can it be concluded that the mean height ofGrade 7 students is different from 163 cm as claimed by the Head of the PE Department?

find the area of the region bounded by the curves x=y³ and y=x²

You are planning to buy a good quality cell phone in order to attend the online calss.The average price of 50 cellphones is ₱13,500 with a standard deviation of ₱573.65 and a confidence level of 99%. Find the corresponding confidence interval.

find the area of the region in the first quadrant by bounded by the curve y=sqrt x^2+5, the x-axis and the line x=2

The circumference of the base of a right circular cone is 75 cm. Find its lateral area if the slant height is 20 cm.

The Head of the Math Department announced that the mean score of

Grade 9 students in the first periodic examination in Mathematics was 89 and

the standard deviation was 12. 0ne student, who believed that the mean

score was less than this, randomly selected 25 students and computed their

mean score. She obtained a mean score of 85. At a 0.01 level of significance,

test the student's beliefs.