A hospital claims that the proportion of full-term babies born in the hospital who weigh less than seven pounds is no more than 42%. Suppose that we want to carry out the hypothesis test for this claim, suspecting otherwise. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.

A medical researcher claims that the proportion of people taking a certain medication that develop serious side effects is 12%. To test this claim, a random sample of 900 people taking the medication is taken and it is determined that 93 people have experienced serious side effects.. The following is the setup for this hypothesis test: Ho :p 0.12 Ha p 0.12 In this example, the p-value was determined to be 0.124. come to a conclusion and interpret the results for this hypothesis test for a proportion (use a significance level of 5%) Select the correct answer below: The decision is to reject the Null Hypothesis. The conclusion is that there is enough evidence to reject the claim O The decision is to fail to reject the Null Hypothesis. The conclusion is that there is not enough evidence to reject the claim

A recent survey of college campuses across Ontario claims that on average students spend more than 2.7 hours a day using their cell phones. State the null and alternative hypothesis.Students spend more than 2.7 hours a day using their cell phones. Students spend 2.7 hours or less a day using their cell phones.

A claim is made that 10% of college students major in Psychology. You believe that this claimed value is too high, so you set out to conduct a hypothesis test, with the following null and alternative hypotheses, and you decide to conduct this hypothesis test using a significance (or alpha) level of 0.05.  You write out the null and alternative hypotheses as follows:  what is the mistake in this?     Ho:  p = 0.10 Ha:  p > 0.10

A college professor states that this year's entering students appear to be smarter than entering students from previous years. The college's records indicate that the mean IQ for entering students from earlier years is 110.4. Suppose that we want to sample a small number of this year's entering students and carry out a hypothesis test to see if the professor's statement can be supported. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test. H0= H1=

3. The local school system feels that the number of student absences in this county is lower than the published state average of 5.6 absences per year. They take a random sample of 120 students and the average number of absences is found to be 4.9. The likelihood that the local school system would observe a sample of this type assuming the state assertion is true is 0.0052. Use the above to formulate a null hypothesis and an alternate hypothesis. a.

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According to the Centers of Disease Control, about 21% of American young people between the ages of 12 and 19 are obese. A student claims that the students his local schools are in better shape than the national average, so their proportion of obese students is less than 21%. Which are the appropriate null and alternative hypotheses for this study? Họ: p = 21%, H1: p = 21% Ho: p × 0, Hq: p = 0 Họ: p = 21%, Hq: p > 21% Họ: p = 21%, H,: p < 21% Suppose tnat the result of the statistical is to fail to reject Ho. Which is the proper conclusion? O There is not sufficient evidence to conclude that the students at his local schools have a smaller true proportion of obese students. O There is sufficient evidence to conclude that the students his local schools have a smaller true proportion of obese students. O There is not sufficient evidence to conclude that the students at his local schools have a smaller sample proportion of obese students. O There is sufficient evidence to conclude that…

It has recently been claimed that 25% of adults consider spring to be their favorite season of the year. A researcher is skeptical of this claim and believes this percentage to be too low. She surveys a random of 1000 adults and find that 390 of these adults consider spring to be their favorite season of the year. As she prepares to conduct a hypothesis test, the researcher writes out her alternative hypotheses as  P< 0.25 what is wrong with this?   The alternative hypothesis should be p<0.39 The alternative hypothesis should be p>0.39 The alternative hypothesis should bep>0.25 The alternative hypothesis should bep=0.25

A company has just developed a new antibiotic. 2 percent of children taking competing antibiotics experience a headache as a side effect. A researcher believes that the proportion of children taking the new antibiotic who experience a headache as a side effect is more than 0.02. We know that the null hypothesis is H0 : p = 0.02 and the alternative hypothesis is H1 : p > 0.02. Suppose that the sample evidence indicates thata. the null hypothesis is rejected. State the conclusion.b. the null hypothesis is not rejected. State the conclusion.