Determine the point estimate. A random sample of 700 tax filers revealed that 637 utilized the standard deduction. Find a point estimate (p-hat) for p, the population proportion of filers who use the standard deduction. O 637 O 1.10 O 63 0.91 Question 26/1

A random sample of 68 households was selected for a phone survey. The key question asked​ was, "Do you or any member of your household own a product from Company​ A?" Of the 68 respondents, 17 said yes and 51 said no.   a. Determine the sample​ proportion, p​ hat, of households that own Company A product. b. If the population proportion is 0.75​, determine the standard error of the​ proportion, use the formula sheet.

An education researcher claims that 59% of college students work year-round. In a random sample of 600 college students, 354 say they work year-round. At a=0.10, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.). OA. At least % of college students work year-round. OB. At most % of college students work year-round OC. The percentage of college students who work year-round is not % OD.% of college students work year-round Let p be the population proportion of successes, where a success is a college student who works year-round. State Ho and H₂ Select the correct choice below and fill in the answer boxes to complete your choice (Round to two decimal places as needed.). OA. Ho: P> Ha ps OD. Ho P= H₂: p (b) Find the critical value(s) and identify the rejection region(s) Identify…

An epidemiologist plans to conduct a survey to estimate the percentage of women who give birth. How many women must be surveyed in order to be 90% confident that the estimated percentage is in error by no more than one percentage point? Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n= (Round up to the nearest integer.) b. Assume that a prior study conducted by an organization showed that 83% of women give birth. n= (Round up to the nearest integer.) c. What is wrong with surveying randomly selected adult women? O A. Randomly selecting adult women would result in an overestimate, because some women will give birth to their first child after the survey was conducted. It will be important to survey women who have already given birth. B. Randomly selecting adult women would result in an underestimate, because some women will give birth to their first child after the survey was conducted. It will be important to survey women who…

A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99% confident that his estimate is in error by no more than four percentage points? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of computers with new operating systems. n= (Round up to the nearest integer.)

A polling company reported that 37% of 1018 surveyed adults said that rising gas prices are "very harmful." Complete parts (a) through (d) below. a. What is the exact value that is 37% of 1018? The exact value is. (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that rising gas prices are "very harmful"? Why or why not? O A. No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "very harmful" because that is a very rare opinion. O B. No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "very harmful" because a count of people must result in a whole number. O C. Yes, the result from part (a) could be the actual number of adults who said that rising gas prices are "very harmful" because the results are statistically significant. D. Yes, the result from part (a) could be the actual number of adults who said that rising gas prices…