In a head-to-head taste test of store-brand foods versus national brands, a company found that it was hard to find a taste difference in the two. If the national brand is indeed better than the store brand, it should have been judged as better more than 50% of the time but that conclusion could not be confirmed. However, if the store brand has a better taste than the national brand, then the store brand should be judged as better more than 50% of the time. Test the hypothesis that the store-brand has a better taste than the national brand.

We fail to reject the null hypothesis.

There's no sufficient evidence to reject the claim that the national board is better than the store board

Step-by-step explanation:

There are some missing information in the question you posted.

They are: sample size, number of success and significance level.

The values of these are given below.

Given that

n = Sample Size = 35

x = Number of Success = 8

∝ = Significance level = 5% = 0.05

First we need to state the null and alternative hypothesis.

Given that proportion is more than 50%.

The claim is either null hypothesis or the alternative hypothesis.

The null hypothesis states that; the proportion is equal to the claimed value while that alternative hypothesis is the opposite of the null hypothesis.

See attachment for more explanation

a is the correct

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this