Answer: t=-5.651
Explanation:
Let 
be the population mean number of hours a week answering their email.
As per given we have
Sample size : n= 783
Sample mean : 
Sample standard deviation: s=7.23
Since population standard deviation is unknown, so our test -statistic has a t-distribution.
Test statistic : 
∴ The test statistic : t=-5.651
Answer:
The correct answer is a) demographic.
Explanation:
Companies generally carry out market research when launching a product or service to their potential customers. To carry out this study, the company must take into account several factors, including the demographic factor.
The demographic factor refers to the division of customers into groups depending on age, location, gender, religion, among other factors, thus helping the company to have an organization and better understand the needs of its customers.
For example, in the case of Signature Cleaners, when reviewing the market, it perceives the inequality of prices between men and women and decides to equalize the prices to attract the attention of this population. Signature Cleaners used the advantages of knowing demographic needs.
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<em>I hope this information can help you.</em>
The answer would be : C. Social
In 1982 , Margaret Thatcher and her cabinet propose some plans to dismantle the Welfare State Such as increased charge on Public School , cutting of the National Health Services, and scaling back various public services
The Spanish And American Indian Policy.
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<span>
The
best and most correct answer among the choices provided by the question is socialists
like Robert Owen favored a more even distribution of income.</span>
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</span><span>Hope my answer would be a great help for you. </span> </span>
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