Numerade

Questions asked

BEST MATCH

1- According to the National Automobile Dealers Association, the mean price for used cars is $10,192. A manager of Kansas City used car dealership reviewed a sample of 50 recent used car sales at the dealership in an attempt to determine whether the population mean price for used cars at this particular dealership less than the national mean. The prices for the sample of 50 cars is in the sheet Question 3 in your data file. a) formulate the hypotheses that can be used to determine whether the population mean price for used cars at this particular dealership less than the national mean. b) What is the p value? c) At α= .05 what is your conclusion? on excel

View Answer

BEST MATCH

Let's practice on finding the pooled proportion. For the following questions, please calcutate the pocled proportion $ p $ and $ q $. You may assume that the two grovps come from the same population: 1) A new medication for treating a particular allment is to be compared to a standard medication to see if there is any exdence that the proportion of complete cures is hidher for the new medleation. A 0.01 stgnificance level is chosen for a hypothests test. In a shingle random sample of 200 subjects, the new medication is found to produce 140 complete cures; in a simple random sample of 300 subjects, the standard medication is found to produce 180 complete cires. 2) A swimming school wants to determine whether a recently hired instructor ls working out. 16 out of 25 of instructor Als students passed the lifeguard certification test on the frist try, In comparison, 57 out of 72 of more experienced instructor B's students passed the test on the frist try. 3) Two types of medication for hlves are beling tested to determine if there is a difference in the percentage of edult patient reactions. Twenty out of a random sample of 200 aduts given medleation $ A $ stilil had hives 30 minutes after taking the medication. Twelve out of another random sample of 200 sadits given medication $ B $ stilil had hives 30 minutes after taling the medication.

View Answer

BEST MATCH

Which statement explains why ethics is so significant to everyone in the criminal justice system? The criminal justice system is typically expected to set the ethical standards for other careers. Ethics watchdogs are more focused on criminal justice systems than any other group in society. Without ethical codes, most of the criminal justice system would lose funding. Those in the criminal justice system have a great deal of discretion in doing their jobs. pr

View Answer

BEST MATCH

Using Table 1, calculate the farm-to-retail price spread for pork in 2017 to the nearest whole cent. Enter your answer as a dollar amount. Assume that the farm level equivalency for one pound of the retail product (pork) is 1.869 pounds of the farm commodity (hog). Table 1. Nominal farm prices and retail prices for pork. Year Farm Retail Price Price (Hog) (Pork) ($ per pound) 2014 0.76 4.02 2015 0.50 3.85 2016 0.46 3.75 2017 0.50 3.78 2018 0.46 3.74 2019 0.48 3.84

View Answer

BEST MATCH

Select the TRUE statement. Group of answer choices Waves touch bottom as they encounter water depths less than half a wavelength The bending of waves is called wave convection When waves reach the bottom, they speed up Water

View Answer

BEST MATCH

What is a "proportional tax"? Select the correct answer below: A proportional tax is a tax that increases as income increases. A proportional tax is a tax on specific goods, usually gasoline, tobacco, and alcohol. A proportional tax is a tax imposed on corporate profits. A tax that collects a flat percentage of income earned, regardless of the level of income.

View Answer

BEST MATCH

Replace the polar equation with an equivalent Cartesian equation. r = 24 sin \theta x^2 + (y - 24)^2 = 144 (x - 12)^2 + y^2 = 144 x^2 + (y - 12)^2 = 144 y = 24

View Answer

BEST MATCH

Two blocks of masses $m_1$ = 2.00 kg and $m_2$ = 4.50 kg are each released from rest at a height of h = 5.50 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (Let the positive direction point to the right. Indicate the direction with the sign of your answer.) (a) Determine the velocity of each block just before the collision. $v_{1i}$ = ____ m/s $v_{2i}$ = ____ m/s (b) Determine the velocity of each block immediately after the collision. $v_{1f}$ = ____ m/s $v_{2f}$ = ____ m/s (c) Determine the maximum heights to which $m_1$ and $m_2$ rise after the collision. $y_{1f}$ = ____ m $y_{2f}$ = ____ m

View Answer

BEST MATCH

5. The following table provides a probability distribution for the random variable x: X f(x) 4 0.50 8 0.30 12 0.20 Compute (a) Probability that x ? 8, (b) E(x), expected value of x.

View Answer

BEST MATCH

A fair die is rolled. If a number 1 or 2 appears, you will receive $5. If any other number appears, you will pay $2. What is the mean value of one trial of this game?

View Answer

ignacio h.