According to the U.S. Census Bureau, in 1950, 39.3 million families had a child under 18 at home. Suppose a recent study found that the number had decreased by 8.9%. How many million families had a child under 18 at home according to this study? Round the number of millions to the nearest tenth

Suppose that the result of a public opinion poll shows that just 10% of people would be willing to give up their cell phones for 1 week in exchange for $100. How many people would need to be surveyed in order to have a margin of error of ±2%?

What percentage change in the total and Hispanic populations occurred in each state between 2000 and 2010?

d. Let’s define a “binge watcher” as someone in the upper 5% of the distribution of minutes watching TV. How many minutes does a “binge watcher” spend per day watching TV? (Round your intermediate calculations and final answer to 1 decimal place.)

a report about an isolated community claims there are more newborn females than males although we assume equal frequencies for each. Records indicate 628 boys and 718 girls born in the past month. what are Ho and Ha?

A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were hospitalized in January, how many had an MRI?

According to floridamuseum.ufl.edu "The 2019 worldwide total of 64 confirmed unprovoked shark attacks were lower than the most recent five-year (2014-2018) average of 82 incidents annually." What is the relative change to the closest percentage point in confirmed unprovoked shark attacks for 2019 versus the recent five-year average?

There are 435 seats in a​ nation's House of Representatives. The number of representatives per state is calculated using a statistical formula determined by​ law, but allocation is roughly proportionate to population. In​ 2010, the​ nation's population was estimated to be 309.1 million. The​ state's population was estimated at 26.1 million. How many representatives would you expect to be assigned to the​ state? Suppose the state actually has 34 representatives. Compare this with the expected number of representatives from the state.

According to a census company. 7 1% of all bables bom are of low birth weight. An obstetrician wanted to know whether mothers between the ages of 35 and 39 years give birth to a higher percentage of low-birth-weight babies. She randomly selected 240 births for which the mother was 35 to 39 years old and found 28 low-birth-weight bables. Complete parts (a) through (c) below. (a) lf the proportion of low-birth-welght babies for mothers in this age group is 0.071, compute the expected number of low-birth-weight births to 35- to 39-year-old mothers. What is the expected number of births to mothers 35 to 39 years old that are not low birth weight? The expected number of low birth-weight births to 35- to 39-year-old mothers is The expected number of births to mothers 35 to 39 years old that are not low birth weight is (Type integers o decimals)

An Associated Press story in Easton, Maryland’s The Star Democrat on June 3, 2010 reported thatAll told, scam artists are believed to have stolen about $47 billion from Medicare in the 2009 fiscal year, nearly triple the toll a year earlier. Medicare spokesman Peter Ashkanaz said that…charges have been filed against 103 defendants in cases involving more than $100 million in Medicare fraud.(a) What percentage of the Medicare fraud has been targeted by filed charges?(b) What is the average claim in each fraud charge?(c) How many of these average size claims would need to be filed to recover the entire $47 billion?