Examine the given statements then express the null

Reference no: EM13636834

1) Examine the given statements then express the null hypothesis and alternative hypothesis in symbolic form. Be sure to use the correct symbol (? , p, ?) for the indicated parameter.

a. The majority of college students have credit cards.

b. The proportion of homes with fire extinguishers is 0.80.

2) Make a decision about the given claims. Use only the rare event rule stated in Section 8-2, and make subjective estimates to determine whether events are likely. For example, if the claim is that a coin favors heads and sample results consist of 11 heads in 20 flips, conclude that there is not sufficient evidence to support the claim that the coin favors heads (because it is easy to get 11 heads in 20 flips by chance with a fair coin).

a. Claim: A coin favors heads when tossed, and there are 90 heads in 100 tosses.

b. Claim: Movie patrons have IQ scores with a standard deviation that is less than the standard deviation of 15 for the general population. A simple random sample of 40 movie patrons results in IQ scores with a standard deviation of 14.8.

Reference no: EM13636834

Questions Cloud

Wter flows at a rate of 25 lmin through a horizontal : water flows at a rate of 25 lmin through a horizontal 7.0-centimeter-diameter pipe under a pressure of 6.0 pa. at one

Assume that the shower times are normally distributed with : in planning for hot water requirements the manger of the luxurion hotel finds that guests spend a mean time of 10.3

Lithium hyydroxide is used in the space program to : lithium hyydroxide is used in the space program to remove carbon dioxide from respiration is spacecraft.

Point charges of 750 are situated at each of three corners : point charges of 7.50 are situated at each of three corners of a square whose side is 0.500 .what is the magnitude of

Examine the given statements then express the null : 1 examine the given statements then express the null hypothesis and alternative hypothesis in symbolic form. be sure to

Assuming that each atom of the substitute is equally : vanadium v is often added to steel in minor amounts to form carbonitrides.a. if v were not available what elements

A source is generating circular waves on the surface of a : a source is generating circular waves on the surface of a lake. the waves have a wavelength of 14.9m and travel outward

An automobile manufacturer would like to know what : an automobile manufacturer would like to know what proportion of its customers are dissatisfied with the service

The standard enthalpy ofvaporization for c2br2f4 is 10464 : the standard enthalpy ofvaporization for c2br2f4 is 104.64 jg at its normal boiling pointof 47.26degc. calculate the

User Account

All Pages