12. Compute M.D 'and its coefficient from the following datá. Classes 7.5- 8.5- 9.5- | 10.5- 11.5- 12.5- 13.5- 8.5 9.5 10.5 11.5 12.5 13.5 14.5 Frequency 2 4 5 7 3 1
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- Answer the following questions. 4. Describe how the permutation of ii objects differs from the permutation of choosing r objects from a set of n objects. Include how each is calculated.Let N(t) be the percentage of a state population infected with a flu virus on week t of an epidemic. What percentage is likely to be infected in week 4 if N(3) = 8 and N'(3) = 1.2?Suppose you are an expert on the fashion industry and wish to gather information to compare the amount earned per month by models featuring Liz Claiborne attire with those of Calvin Klein. The following is the amount ($000) earned per month by a sample of 15 Claiborne models $5.0 $4.5 $3.4 $3.4 $5.0 $3.3 $4.5 $4.6 $3.5 $5.2 $4.8 $4.4 $4.6 $3.6 $6.0 The following is the amount ($000) earned by a sample of 12 Klein models. $3.1 $3.7 $3.6 $4.0 $3.8 $3.8 $5.9 $4.9 $3.6 $3.6 $2.3 $4.0 Is it reasonable to conclude that Claiborne models earn more? Use the .05 significance level and assume the population standard deviations are not the same.
- Suppose you are an expert on the fashion industry and wish to gather information to compare the amount earned per month by models featuring Liz Claiborne attire with those of Calvin Klein. The following is the amount ($000) earned per month by a sample of 15 Claiborne models: $5.0 $4.5 $3.4 $3.4 $6.0 $3.3 $4.5 $4.6 $3.5 $5.2 $4.8 $4.4 $4.6 $3.6 $5.0 The following is the amount ($000) earned by a sample of 12 Klein models. $3.1 $3.7 $3.6 $4.0 $3.8 $3.8 $5.9 $4.9 $3.6 $3.6 $2.3 $4.0 Click here for the Excel Data File Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.) State the decision rule for 0.05 significance level: H0: μClaiborne ≤ μCalvin Klein ; H1: μClaiborne > μCalvin Klein. (Round your answer to 3 decimal places.) Compute the value of the test statistic. (Round your answer to 3 decimal places.)Classify the following statements as to whether they belong to the area ofdescriptive statistics or inferential statistics___________________ 1. At most 5% of SLU students are smokers.___________________ 2. Assuming that less than 20% of the Kalinga coffee beans weredestroyed by a typhoon these past months, we should expect anincrease of no more than P30 for a kilogram of coffee by the endof the year. ___________________ 3. An employee generalized that the average monthly salary of a regular employee in a certain company is P12,000. ___________________ 4. A study found out that all customers who have received a giftcertificate from a store 75% went back to the store to shop.___________________ 5. The average grade in statistics of 50 students is 83.60.Suppose you are an expert on the fashion industry and wish to gather information to compare the amount earned per month by models featuring Liz Claiborne attire with those of Calvin Klein. The following is the amount ($000) earned per month by a sample of 15 Claiborne models: $6.3 $3.5 $3.5 $3.5 $4.8 $6.5 $6.2 $5.7 $4.2 $5.4 3.9 4.3 5.1 5.6 6.9 The following is the amount ($000) earned by a sample of 12 Klein models. $3.2 $4.5 $4.1 $5.1 $3.6 $3.4 $3.5 $3.6 $3.1 $2.9 2.8 2.7 Is it reasonable to conclude that Claiborne models earn more? Assume the population standard deviations are not the same.a. Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.) b. State the decision rule for 0.01 significance level: H0: μClaiborne ≤ μCalvin Klein ; H1: μ Claiborne > μ Calvin Klein. (Round your answer to 3 decimal places.) c. Compute the value of the test…
- the monthly rents in dollars paid by 8 people are given below. 840,860,900,930,985,1035,1075,1095 suppose one of the people move her rent changes from 840 to 880? what happends to the mean ? what happends to the medium?3. Is the following variable discrete or continuous: The number of questions asked during a 1-hour review session.It is known that 9 out of 10 people are right-handed. Would 18 right-handed people out of group of 52 be considered significantly low, significantly high, or neither? Show your work below.
- 1. A recent survey of INTO Newcastle University students showed that 65% own aniPhone, 75% have a Casio fx-83 calculator and 10% have neither.a. Find the percentage of students who have both an iPhone and a calculator. b. In the space below, draw a Venn Diagram to represent this information.Assume that σ12 = σ22 = σ2. Calculate the pooled estimator of σ2 for s12=50, s22=57 and n1 =n2 =18.A manufacturer of exercise equipment knows that 15% of their products aredefective. They also know that only 35% of their customers will actually use the equipment in the first year after it is purchased. If there is a one-year warranty on the equipment, what proportion of the customers will actually make a valid warranty claim?
