Weight Loss of Newborns An obstetrician read that a newborn baby loses on average 7" ounces in the first two days of his or her life. He feels that in the hospital where he works, the average weight loss of a newborn baby is less than 7' ounces. A random sample of 34 newborn babies has a mean weight loss of 6'? ounces The population standard deviation is 1.9 ounces. Is there enough ewdence at at = 0.10 to support his claim? Assume that the variable is normally distributed. Use the critical value method with tables. Part: Chir 5 Part 1 of5 State the hypotheses and identify the claim with the correct hypothesis HUII:' \"Choose one) v l H1:|:l l:l This hypothesis test is a |(Choose one) Y ltest. u 8 ll I Espanol Sick Days in Bed A researcher wishes to see if the average number of sick days a worker takes per year is greater than 5. A random sample of 37 workers at a large department store had a mean of 5.4. The standard deviation of the population is 1.4. Is there enough evidence to support the researcher's claim at a = 0.01? Assume that the variable is normally distributed. Use the critical value method with tables. Part: 0 / 5 Part 1 of 5 Ed State the hypotheses and identify the claim with the correct hypothesis. HO : L (Choose one) H1 : (Choose one) 0=0 0#0 This hypothesis test is a (Choose one) V test. X 5Copy Machine Use A store manager hypothesizes that the average number of pages a person copies on the store's copy machine is less than 40. A sample of Espanol 34 customers' orders is selected. At a = 0.10, is there enough evidence to support the claim using the P-value method? Assume o = 30.9. 32 5 29 8 49 21 24 72 70 21 85 61 8 42 15 27 113 36 37 5 58 82 9 OO 2 1 6 9 80 0 51 Send data to Excel Ed Part: 0 / 5 Part 1 of 5 State the hypotheses and identify the claim. H : (Choose one) 0 0=0 H1 : (Choose one) H The hypothesis test is a (Choose one) V test.Cell Phone Call Lengths The average local cell phone call length was reported to be 2.35 minutes. A random sample of 23 phone calls showed an average of 2.82 minutes in length with a standard deviation of 0.88 minutes. At a = 0.01, can it be concluded that the average differs from the population average? Assume that the population is approximately normally distributed. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and identify the claim. M Ho : (Choose one) H1 : (Choose one) 1=0 0#0 This hypothesis test is a (Choose one) test. XEspanol Water Consumption The Old Farmer's Almanac stated that the average consumption of water per person per day was 123 gallons. To test the hypothesis that this figure may no longer be true, a researcher randomly selected 24 people and found that they used on average 118.8 gallons per day and s = 5.3. At a = 0.10, is there enough evidence to say that the Old Farmer's Almanac figure might no longer be correct? Use the P-value method. Assume the population is approximately normally distributed. OO Part: 0 / 5 Part 1 of 5 Ed (a) State the hypotheses and identify the claim. Ho: (choose one) H1 : (Choose one) 0=0 This hypothesis test is a (Choose one) V test. X 5