germainenez2583 germainenez2583

21-10-2022
Mathematics

Answered

a marketing manager must decide on the size of the survey sample to be used in order to estimate the proportion of customers who are aware of her brand. she wishes to estimate this proportion to within 7 percentage points with 90% confidence. if the manager guesses that the proportion of aware customers is roughly 30%, what is the size of the sample that must be used? number (rtol

Answer :

Other Questions

a door delivery florist wishes to estimate the proportion of people in his city that will purchase his flowers. suppose the true proportion is 0.07. if 492 are

a random sample of 80 observations results in 50 successes. a. construct the 95% confidence interval for the population proportion of successes. b. construct th

a credit card company surveys its customers to determine the number of times they use the card each month. there are 5,500 customers and 2,756 indicate that the

what is the percent of water for a compound given the following data? trial masses 1 2 3 beaker (g) 10.001 10.002 10.050 beaker sample (g) 11.001 10.999 11.052

the daily revenue of a sandwich shop depends on many factors, one of which is the number of customers. a linear approximation of the conditional expectation fun

As the sample size becomes larger, the sampling distribution of the sample mean approaches a _____ distribution.

7. the manufacturer of a new fiberglass tire claims that its average life will be at least 40,000 miles. to verify this claim, sample of 78 tires are tested. sa

Estimate √63 to the nearest tenth. Then locate √63 on a number line

a surveying team set up some equipment ft from the base of a tree in order to sight the top of the tree. from ground level, they measure the angle of elevation