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djyliett [7]
2 years ago
6

A sample of 40 individuals at a shopping mall found that the mean number of visits to a restaurant per week was 2.88 with a stan

dard deviation of 1.59. Find a 99% confidence interval for the mean num-ber of restaurant visits. Use the appropriate formula and verify your result using the Confidence Intervals workbook.
Business
1 answer:
Katarina [22]2 years ago
3 0

Answer:

The confidence interval is between 2.23 and 3.53

Explanation:

The confidence interval (C) = 99% = 0.99

α = 1 - C = 1 - 0.99 = 0.01

α/2 = 0.01/2 = 0.005

The z score of α/2 corresponds to the z score of 0.495 (0.5 - 0.005) which is 2.576

The margin of error (E) is given as:

E=z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} }\\\\where\ n=sample\ size,\sigma=standard\ deviation\\\\Given\ that\ \sigma=1.59,n=40,z_{\frac{\alpha}{2} }=2.576\ hence: \\\\E=2.576*\frac{1.59}{\sqrt{40} } =0.65

The confidence interval = mean ± margin of error = 2.88 ± 0.65 = (2.23, 3.53)

The confidence interval is between 2.23 and 3.53

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Market competition may sometimes encourage a firm to innovate out of fear because of the perception that Group of answer choices
topjm [15]

Answer:

they will inevitably fall behind other competitors seeking out innovations.

Explanation:

Innovation typically involves the creation of a new product of any category such as automobile, building, phones, electronics, etc., that generates money for the innovators or manufacturers through purchase made by the end users (consumers).

Competitive advantage can be defined as conditions, factors or circumstances that allow a business firm (organization) to manufacture finished goods or services better and perhaps cheaper than other (rival) firms in the same industry. Thus, it's responsible for putting a business firm in a superior or more favorable position than rival firms.

This ultimately implies that, a competitive advantage has a significant impact on a business because it increases its level of sales, revenue generation and profit margin when compared to rival firms in the same industry.

Hence, market competition may sometimes encourage a firm to innovate out of fear because of the perception that they will inevitably fall behind other competitors in the same industry who are seeking out innovations.

7 0
2 years ago
If a company uses a predetermined rate for absorbing manufacturing overhead, the volume variance is the: Group of answer choices
Mama L [17]

Answer: c. Difference in budgeted costs and actual costs of fixed overhead items.

Explanation:

If a company uses a Predetermined rate for Manufacturing Overhead this means that they have budgeted a certain cost of overhead that they believe will be sufficient for production. This is usually possible for fixed overhead items.

The Variance therefore would be the difference between this budgeted figure and the actual figure for the fixed Overhead items.

7 0
3 years ago
Consider a $2,700 deposit earning 6 percent interest per year for 9 years. How much total interest is earned on the original dep
kaheart [24]

Answer:

Total interest earned on the original deposit=$403.593

Explanation:

Total Interest earned after 6 years using compound Interest:

FV=PV(1+i)^n

Where:

PV is the deposit amount

i is the interest Rate

FV=\$2,700(1+0.06)^9

FV=$4561.593

Total Interest earned after 6 years=FV-PV

Total Interest earned after 6 years=$4561.593-$2,700

Total Interest earned after 6 years=$1861.593

Total Interest earned after 6 years using single Interest:

Total Interest=$2,700*0.06*9

Total Interest =$1458

Total interest earned on the original deposit=Total Interest earned after 6 years-Total Interest

Total interest earned on the original deposit=$1861.593-$1458

Total interest earned on the original deposit=$403.593

5 0
3 years ago
Which model of successful aging was developed by paul and margret baltes and focuses on the assumption that late adulthood bring
olya-2409 [2.1K]
The model is called SELECTIVE OPTIMIZATION WITH COMPENSATION. 
Selective optimization with compensation is a method for successful aging which involves maximizing one's gains while one minimizes the impacts of losses that accompany aging. 
5 0
3 years ago
If a 7% increase in the price of cheese causes a 7% reduction in the total revenue received by cheese farmers, the demand for ch
Vanyuwa [196]

Answer:

C.Unit elastic

Explanation:

Unit elastic demand is the term that describes a scenario where a change in price causes a proportionate change in demand. It is one of the types of elastic demand. A good or service is said to have elastic demand if a small change in price causes a considerable change in the quantity demanded.

In the unit elastic demand, if a product price changes by a certain percentage, the demand will change by an equal percentage. In this scenario, a 7 percent price increase results in a 7 percent decrease in demand.

5 0
2 years ago
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