Colonial Funds claims to have a bond fund which has maintained a mean share price of $14.00. They claim that the variance of the shareprice is 0.18. To test this claim, the investor randomly selects 12 days during the last year. He finds an average share price of $13.80with a standard deviation of 0.3905. Can the investor conclude that the share price of the bond fund varies from Colonial Funds claims ata = 0.05?Step 1 of 5: State the hypotheses in terms of the standard deviation, Round the standard deviation to four decimal places whennecessary.AnswerHo:HaTablesKeypadKeyboard Shortcuts

The population mean: The population variance: The sample size:

Answered: Colonial Funds claims to have a bond…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An insurance company wants to make sure that its best customers (those with lowest value of insurance claims) stay with the company. To achieve this goal, the company plans to offer a 10% discount on the annual health insurance premium for customers with the lowest 20% of annual health care expenses. If the average annual health care expenses for a family of four is $3,650 with a standard deviation of $975, what is the amount of the maximum annual health care expense that will qualify for the proposed discount?
#2) A large warehouse installed a security system a few years ago. Under an older system the managers estimated that they were losing an average of $678 worth of goods to thieves each week. A random sample of 36 weekly records under the current system showed that they were still losing an average of $650 worth of goods each week. The sample standard deviation was s = $93. Does this indicate that the average loss is different (either more or less) than the previous $678 per week? Use a 5% level of significance.
A ride-sharing company has computed its mean fare to be $31.00, with a standard deviation of $5.10. Suppose that the fares are normally distributed. Complete the following statements. (a) Approximately 99.7% of the company's rides have fares between $ and $. of the company's rides have fares between $25.90 and (b) Approximately? $36.10. &圖□ 图 D
If you get a sneak peak at the salary list of your job and realize you are in the lowest bracket, which is the lowest 1%, what is your salary if you know that the mean salary is $48,000 and it has a standard deviation of $5500?
solve the following problems Based on a survey, the mean weekly allowance of the Grade 11 students of XZY University is ₱750.00 with a standard deviation of ₱100.00. Assuming that the weekly allowance is normally distributed, what is the z-score of a student with a weekly allowance of: a. ₱950.00 b. ₱600.00
A ride-sharing company has computed its mean fare to be $34.00, with a standard deviation of $5.20. Suppose that the fares are normally distributed. Complete the following statements. (a) Approximately 99.7% of the company's rides have fares between $ and $0. (b) Approximately ? of the company's rides have fares between $28.80 and $39.20.
I'm having difficulty labeling for the 3 boxes above the graph
The following data show the interest rates on 4 randomly chosen personal loans (in percents): 7.1, 6.5, 12.7, 8.5. Calculate the standard deviation of the sample of interest rates. (please express your answer using 2 decimal places)
Colonial Funds claims to have a bond fund that has maintained a mean share price of $⁢10.00. They claim that the variance of the share price is 0.18. To test this claim, the investor randomly selects 29 days during the last year. He finds an average share price of $⁢9.80 with a standard deviation of 0.4006. Can the investor conclude that the share price of the bond fund varies from Colonial Funds claims at α=0.05? Step 1 of 5 : State of the hypotheses in terms of the standard deviation. Round the standard deviation to four decimal places when necessary Step 2 of 5 : Determine the critical value(s) of the test statistic. If the test is two-tailed, separate the values with a comma. Round your answer to three decimal places. Step 3 of 5 : Determine the value of the test statistic. Round your answer to three decimal places. Step 4 of 5 : Make the decision. Step 5 of 5 : What is the conclusion?
Directions: Compute the total returns, the average of returns, and the standard deviation of the following stocks: 1) 2) EGRH Inc. DMP, Ltd. STOCK RETURN YEA AVERAGE OF RETURNS (x) YEAR STOCK RETURN PRICE AVERAGE OF RETURNS (x) PRICE (x₁) Jan-2021 P8.30 Feb-2021 P8.60 Jan-2021 PO. Feb-2021 PO.090 Mar-2021 P0.097 Apr-2021 PO.189 May-2021 PO.164 Mar-2021 P9.14 Apr-2021 P13.30 May-2021 P13.74 Jun-2021 P14.80 Jul-2021 P16.94 Jun-2021 P0.495 Jul-2021 PO.28 Aug-2021 PO Sep-2021 90 Aug-2021 P13.70 Sep-2021 P14.88 Oct-2021 0.375 Oct-2021 P15.30 Nov-20 PO.325 Nov-2021 P14.30 Dec-2 PO.330 Dec-2021 P15.52 3) SD (8) GSM Inc. STOCK YEAR PRICE Jan-2021 P57.70 Feb-2021 P52.90 Mar-2021 P50.95 Apr-2021 P58.25 May-2021 P74.05 Jun-2021 P94.75 Jul-2021 P85.00 Aug-2021 P105.00 Sep-2021 P114.00 Oct-2021 | P101.00 Nov-2021 P100.40 Dec-2021 P113.80 SD (8) = RETURN (x₁) -x)² AVERAGE OF RETURNS (x-x)² (x) SD (8) = ACEE, Inc. YEAR STOCK RETURN PRICE (x₁) Jan-2021 P13.56 Feb-2021 P20.80 Mar-2021 P22.50 Apr-2021…
The reading speed of second grade students in a large city is approximately normal, with a mean of 91words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f).
Assume that the results are normally distributed.An experiment consists of tossing 100 dimes repeatedly and noting the number of heads each time. The graph of the number of heads turns out to be very nearly a normal curve, with a mean of 50 and a standard deviation of 5. (Enter your answers as whole numbers.) (a) Within what limits would you expect the number of heads to be 68% of the time? lower limit heads upper limit heads (b) What percent of the time would you expect the number of heads to be between 40 and 60? %(c) Suppose that a particular dime arouses your suspicion by turning up heads too often. You toss this dime 100 times. How many times will it have to turn up heads in order for you to be almost 100% certain that it is not a fair coin? (Hint: Most of the data in a normal distribution fall within 3 standard deviations of the mean.)more than times

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