For the following conjecture, state the null and alternative hypotheses. The average weight loss of people who exercise 30 minutes per day for 6 weeks is less than 8.2 pounds. The null hypothesis is Ho The alternative hypothesis is H₁: OO H 0=0 5
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- Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.a. State the researcher’s null and alternative hypothesis. b. At α = 0.01, test your hypothesis. Show all your calculations to receive full credit.A large nationwide poll recently showed an unemployment rate of 9% in the US. The mayor of a local town wonders if this national result holds true for her town, so she plans on taking a sample of her residents to see if the unemployment rate is significantly different than 9% in her town. Let p represent the unemployment rate in her town. Here are the hypotheses she'll use: Ho :p = 0.09 H :p + 0.09 Under which of the following conditions would the mayor commit a Type l error?
- For the following conjecture, state the null and alternative hypotheses. The average number of monthly visits/sessions on the Internet by a person at home has decreased from 36 in 2009. The null hypothesis is Ho : OLarry’s car averages 32 miles per gallon on the highway. He now switches to a new motor oil that is advertised as increasing gas mileage. After driving 3000 highway miles with the new oil, Larry estimates the new gas mileage to be 31.8. We wish to test if the motor oil increased his gas mileage. Which of the following are the appropriate null and alternative hypotheses, letting μ denote his new gas mileage? The null hypothesis is H0: ["", "", "", ""] The alternative hypothesis is Ha:In a sample of 49 men, 38 said that they had less leisure time today than they had 10 years ago. In a sample of 49 women, 30 women said that they had less leisure time today than they had 10 years ago. At α=0.01, is there a difference in the proportions?Use p1 for the proportion of men with less leisure time. State the hypotheses and identify the claim with the correct hypothesis. H0 : p1=p2 ▼not claim H1 : p1≠p2 ▼claim This hypothesis test is a ▼two-tailed test. Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas. Critical value(s):_______________In a sample of 52 men, 39 said that they had less leisure time today than they had 10 years ago. In a sample of 52 women, 32 women said that they had less leisure time today than they had 10 years ago. At α=0.10, is there a difference in the proportions? Use p1 for the proportion of men with less leisure time. State the hypotheses and identify the claim with the correct hypothesis. H0 : ▼(Choose one) H1 : ▼(Choose one) This hypothesis test is a ▼(Choose one) test. Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas. Critical value(s)= Compute the test value. Round sample proportions to three decimal places and z -score values to two decimal places. z= Make the decision. ▼(Choose one) the null hypothesis. Summarize the results. There ▼(Choose one) enough evidence to support the…For the following conjecture, state the null and alternative hypotheses. The average resting pulse rate of male marathon runners is greater than 70 beats per minute. The null hypothesis is: H0____.The alternative hypothesis is: H1____.Child and Protective Services, a branch of the Department of Health and Human Services is investigating the monthly average number of children in foster care over the last several years. They are interested in seeing if the average is dropping from 235 children per month in 2001. The null hypothesis for this problem would be: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Ho : µ < 235 a b Ho = 235 Ho : p = 235 d Ho: μ- 235 e None of the above