The following table shows the daily calories intake for two groups of samples who said they normally do not eat fast food and usually eat fast food: eat fast food sample size sample mean sample standard deviation
No 663 2258 1519
Yes 413 2637 1138

We are interested in exploring whether this data provide strong evidence for concluding that average calorie intake for people who eat fast food is larger than the those who do not usually eat fast food.

Required:
a. What are the null hypothesis and alternative hypothesis?
b. Use central limit theorem to find the p-value and make a decision based on α = 0.05 significance level.
c. Use Welch’s t test to find the p-value and make a decision based on α = 0.05 significance level. (Use R to help you find the p-value for this problem).

college

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.

where is the graph? need more info