Show that :(i) Fishers IN. lies between Laspeyre's and Pagsche's Inder numbers.
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- Prove the conjecture made in the preceding exercise.There was a compete e^AT partA research center claims that 26% of adults in a certain country would travel into space on a commercial flight if they could afford it. In a random sample of 1000 adults in that country, 29% say that they would travel into space on a commercial flight if they could afford it. At α=0.05, is there enough evidence to reject the research center's claim? Complete parts (a) through (d) below. (a) Identify the claim and state H0 and Ha. "Recall that the claim is the percentage of adults in the country would travel into space on a commercial flight if they could afford it. Let a success be an adult in the country who would travel into space on a commercial flight if they could afford it. Translate the claim made about the population parameter from a verbal statement to a mathematical statement." (b) Use technology to find the P-value. (c) Decide whether to reject or fail to reject the null hypothesis and (d) interpret the decision in the context of the original claim.
- A sample of n=25 scores has a mean of M=68. Find the z-scores for this sample: if it was obtained from a population with u=60 and o=40A sample of n= 64 scores has a mean of M= 68. Assuming that the population mean is u=60, find the z-score for this sample: If it was obtained from a population with o= 16 Z=a. at 95% level of confidence, is there enough evidence to day that there will be no sales for a week if the store have no budget for the ads? b. compute for the R^2
- Determine the best (according to sum-of-squares-measure) curve y = ax + b, through thedata below.A sample of n=25 scores has a mean of M=68. Find the z-score for this sample: if it was obtained from a population with u=60 and o=20A marketing research group found that 25% of the 200 shoppers, it recently interviewed at a certain shopping center, resided more than 12 miles from the center. Assume that a random sample was taken, construct a 95% C.I. for the actual; percentage of shoppers who live more than 15 miles from that center.
- 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.A sample of n = 64 scores has a mean of M = 68. Assuming that the population mean is μ = 60, find the z-score for this sample: If it was obtained from a population with σ = 16 z = If it was obtained from a population with σ = 32 z = If it was obtained from a population with σ = 48Do you expect the distributions of the following variables to be symmetricor skewed? Explain.a. Size in dollars of nonsecured loansb. Size in dollars of secured loansc. Price of an 8-ounce can of peasd. Height in inches of freshman women at your universitye. Number of broken taco shells in a package of 100 shellsf. Number of ticks found on each of 50 trapped cottontail rabbits