The dean of the engineering school at a technical university wants to emphasize the importance of having students who are gifted at reading and writing as well as math. She wants to know if she can accurately claim that graduate students in engineering programs at her school have significantly higher scores on the verbal reasoning section of the GRE (a standardized test used in the admissions process for many graduate programs) than the national average for engineering students. The national average for the verbal reasoning GRE score for engineering students was 150 with a standard deviation of 9. A random sample of 49 engineering graduate students at her school were found to have an average verbal reasoning GRE score of 153. What are the null and alternative hypotheses?A. H0: μ = 153; Ha: μ ≠ 153.B. H0: μ = 153; Ha: μ > 153.C. H0: μ = 150; Ha: μ ≠ 150.D. H0: μ = 150; Ha: μ > 150.

H0: μ = 150; Ha: μ > 150.

Step-by-step explanation:

Null hypothesis:

Expected outcome, population mean.

The national average for the verbal reasoning GRE score for engineering students was 150...

This means that

Alternate hypothesis:

What we want to claim...

She wants to know if she can accurately claim that graduate students in engineering programs at her school have significantly higher scores on the verbal reasoning section of the GRE...

Want to claim that it is higher than the national average of 150, so

So the correct answer is:

H0: μ = 150; Ha: μ > 150.

yes the data was not prsented

step-by-step explanation:

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.