A pipes manufacturer makes pipes with a length that is supposed to be 13 inches. A quality control technician sampled 25 pipes and found that the sample mean length was 13.04 inches and the sample standard deviation was 0.14 inches. The technician claims that the mean pipe length is not 13 inches. 1. What type of hypothesis test should be performed? What is the test statistic?
2. What is the number of degrees of freedom?
3. Does sufficient evidence exist at the a= 0.1 significance level to support the technician's claim?

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

(23*2)-12=x     x=34

step-by-step explanation:

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.