In a study of the accuracy of fast food drive-through orders, one restaurant had 34 orders that were not accurate among 391 orders observed. use a 0.05 significance level to test the claim that the rate of inaccurate orders is equal to 10%. does the accuracy rate appear to be acceptable?

Yes , the accuracy rate appear to be acceptable .

Step-by-step explanation:

Let p be the population proportion of the orders that were not accurate .

Then according to the claim we have ,

Since the alternative hypothesis is two-tailed so the hypothesis test is a  two-tailed test.

For sample ,

n = 391

Proportion of  the orders that were not accurate =

Test statistics for population proportion :-

By using the standard normal distribution table,

The p-value :

Since the p-value is greater that the significance level (0.05), so we do not reject the null hypothesis.

Hence, we conclude that the accuracy rate appear to be acceptable.

probability for j is 1/4

while

a is 1/6

ans789

step-by-step explanation: