Stating conclusions about claims

Assignment Help Basic Statistics

Reference no: EM13110274

In these questions we have to make a decision about the given claim. For example, if the claim is that a coin favors heads and sample results consists of 11 heads in 20 flips, conclude that there is not sufficient enough evidence to support the claim that the coin favors heads.

1) Claim: The proportion of households with telephones is greater than the porportion of 0.35 found in the year 1920. A recent simple random sample of 2480 households results in a prportion of 0.955 households with tele[phones

2) 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: EM13110274

Questions Cloud

Null hypothesis and alternative hypothesis : You work at a hospital that has always had about 100 emloyees staffed at night. You think that the number of employees staffed at night has recently decreased and would like to test this claim.

Difference in proportion of viewers watching three channels : Random sample of 150 viewers last night revealed 53 watched news on WNAE, 64 watched on WRRN, and 33 on WSPD. At .05 significance level, is there a difference in proportion of viewers watching three channels?

Question about fixed order interval system : How much gravy should be ordered using a fixed order interval system? Order is being placed on Thursday and the fiscal week begins on Thursday and ends on Wednesday.

What is the order of the loci : Suppose you analyze three phenotypes in the common fruit fly Drosophila (A,B,D). The recessive alleles causing mutant phenotypes are represented by a,b, and d.

Stating conclusions about claims : In these questions we have to make a decision about the given claim. For example, if the claim is that a coin favors heads and sample results consists of 11 heads in 20 flips, conclude that there is not sufficient enough evidence to support the cl..

Discuss categories of swot elements of information : List at least FIVE sources you will use to obtain information about the firm's strengths, weaknesses, opportunities, and threats. Discuss what categories of the SWOT elements of information are readily available on the Internet.

Statistics null hypothesis rejection : An economic researcher would like to know whether he can reject the null hypothesis at the 0.10 level, that no more than 20% of the households in Pennsylvania make more than $70,000 per year.

Determine the efficiency of market research : Determine the Efficiency of this market research. What would be your suggestions? How much will this company be eager to pay for this market research?

Statistical on ghypothesis testing : An automotive manufacture claims mean price of small SUV is $25,071 if hypothesis test is performed how you should interpret a decision,

User Account

All Pages