The price per share of stock for a sample of 25 companies was recorded at the beginning of the first financial quarter and then again at the end of the first financial quarter. How stocks perform during the f quarter is an indicator of what is ahead for the stock market and the economy. Use the sample data in the file StockQuarter to answer the following. Click on the datafile logo to reference the data. DATA file Company Bank of New York Mellon Kraft Foods E.I. du Pont de Nemours and Company Consolidated Edison Johnson & Johnson Union Pacific Comcast Applied Materials Pfizer , 7.46) (to 3 decimals) General Electric AT&T Cisco Systems Home Depot JP Morgan Chase Procter & Gamble Verizon Devon Energy Lilly Microsoft Coca Cola Qualcomm Exxon Mobil Corporation PG&E Corporation Oracle Corporation Chevron a. Let di denote the percentage change in price per share for company i where Beginning End of 1st of 1st d₁ = ! Quarter 53.82 77.02 109.00 83.58 139.23 135.78 41.07 53.04 36.44 17.98 38.54 38.86 188.03 107.95 90.65 53.53 42.23 84.68 85.95 45.59 65.20 85.03 44.49 46.63 127.58 Quarter 54.19 55.70 102.57 79.95 126.01 132.73 32.06 50.91 35.40 14.05 32.54 44.83 184.63 108.78 71.96 48.82 36.20 79.07 95.00 42.59 50.82 76.95 end of 1" quarter price per share - beginning of 1" quarter price per share beginning of 1 quarter price per share Use the sample mean of these values to estimate the percentage change in the stock price over the first quarter. Do not round intermediate calculations. Enter negative value as negative number, if any. (to 3 decimals) 46.27 45.95 129.86 b. What is the 95% confidence interval estimate of the population mean percentage change in the price per share of stock during the first quarter? Do not round intermediate calculations. Enter negative va megative numbers, if any. Confidence interval (
The price per share of stock for a sample of 25 companies was recorded at the beginning of the first financial quarter and then again at the end of the first financial quarter. How stocks perform during the f quarter is an indicator of what is ahead for the stock market and the economy. Use the sample data in the file StockQuarter to answer the following. Click on the datafile logo to reference the data. DATA file Company Bank of New York Mellon Kraft Foods E.I. du Pont de Nemours and Company Consolidated Edison Johnson & Johnson Union Pacific Comcast Applied Materials Pfizer , 7.46) (to 3 decimals) General Electric AT&T Cisco Systems Home Depot JP Morgan Chase Procter & Gamble Verizon Devon Energy Lilly Microsoft Coca Cola Qualcomm Exxon Mobil Corporation PG&E Corporation Oracle Corporation Chevron a. Let di denote the percentage change in price per share for company i where Beginning End of 1st of 1st d₁ = ! Quarter 53.82 77.02 109.00 83.58 139.23 135.78 41.07 53.04 36.44 17.98 38.54 38.86 188.03 107.95 90.65 53.53 42.23 84.68 85.95 45.59 65.20 85.03 44.49 46.63 127.58 Quarter 54.19 55.70 102.57 79.95 126.01 132.73 32.06 50.91 35.40 14.05 32.54 44.83 184.63 108.78 71.96 48.82 36.20 79.07 95.00 42.59 50.82 76.95 end of 1" quarter price per share - beginning of 1" quarter price per share beginning of 1 quarter price per share Use the sample mean of these values to estimate the percentage change in the stock price over the first quarter. Do not round intermediate calculations. Enter negative value as negative number, if any. (to 3 decimals) 46.27 45.95 129.86 b. What is the 95% confidence interval estimate of the population mean percentage change in the price per share of stock during the first quarter? Do not round intermediate calculations. Enter negative va megative numbers, if any. Confidence interval (
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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