A candy company says that 20% of their candies are red. Suppose you examine a sample of 83 random pieces of candy. What is the standard error for the sample proportion?

A professor wishes to estimate the proportion of college students that have never cheated during a course. She wishes to estimate the proportion to be within​ 4.15% with​ 96% confidence. How many teenagers are needed for the​ sample?   A. 613   B. 614   C. 612   D. 611                             E. Insufficient information to answer the question

Solve the last question please

a national caterer determined that 37% of the people who sampled their food said that it was delicious. A random sample of 144 people are asked to sample the caterers food.  If p is the sample proportion saying that the food is delicious, what is the standard error for the sampling distribution of p?

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Please scroll down to see the entire question. The quality control manager of an automobile parts factory would like to know whether there is a difference between the proportion of defective parts produced on different days of the work week. Random samples of 100 parts produced on each day of the week were​ selected, with the following results:                       Result: Mon Tues Wed  Thurs Fri # of defective parts: 12 7 7 10 14 # of non-defective parts: 88 93 93 90 86 At​ 5% level of significance​, is there evidence of a significant difference in the proportion of defective parts produced on the various days of the week     ​(A )​ Step-1: State the hypotheses​ ( H0 and H1​ ), and identify the claim   A. H0: Proportion of defective parts is not the same for the days of the week. ​ H1: Proportion of defective parts is the same for all days of the week   B. ​H0: Proportion of defective parts is dependent on the days of the week ​ H1: Proportionof defective parts is…

You are conducting a case-control study to examine the association between retail work and housing insecurity. You enroll 250 cases and 250 controls. 121 people work in retail, including 71 cases. Calculate the odds ratio to examine the association between retail work and housing security. Round to the nearest 10th (one decimal point). Your Answer:

A recent poll of 1500 new home buyers found that 60% hired a moving company to help them move to their new home. Find the margin of error for this poll if we want 95% confidence in our estimate of the percent of new home buyers who hired movers.Group of answer choices5%2.48%4.96%2.08%2.5%

About 7% of the popular has a mutation. 100 people are randomly selected. What is the mean for the number of people with a mutation?

7. Find the z-score that cuts off a left tail whose area is 2.5%. 8. Find the z-score that cuts off a right tail whose area is 10.75%.