Question

For many years businesses have struggled with the rising cost of health care. But recently, the increases have slowed due to less inflation in health care prices and employees paying for a larger portion of health care benefits. A recent Mercer survey showed that 52% of U.S. employers were likely to require higher employee contributions for health care coverage. Suppose the survey was based on a sample of 400 companies. Compute the margin of error and a 95% confidence interval for the proportion of companies likely to require higher employee contributions for health care coverage. If required, round your answer to four decimal places. Round intermediate calculations to four decimal places. a). Margin of error: b). confidence interval: ___ to ___

Answer #1

For many years businesses have struggled with the rising cost of
health care. But recently, the increases have slowed due to less
inflation in health care prices and employees paying for a larger
portion of health care benefits. A recent Mercer survey showed that
52% of U.S. employers were likely to require higher employee
contributions for health care coverage. Suppose the survey was
based on a sample of 700 companies. Compute the margin of error and
a 95% confidence interval...

For many years businesses have struggled with the rising cost of
health care. But recently, the increases have slowed due to less
inflation in health care prices and employees paying for a larger
portion of health care benefits. A recent Mercer survey showed that
52% of U.S. employers were likely to require higher employee
contributions for health care coverage. Suppose the survey was
based on a sample of 400 companies. Compute the margin of error and
a 95% confidence interval...

For many years businesses have struggled with the rising cost of
health care. But recently, the increases have slowed due to less
inflation in health care prices and employees paying for a larger
portion of health care benefits. A recent Mercer survey showed that
52% of U.S. employers were likely to require higher employee
contributions for health care coverage. Suppose the survey was
based on a sample of 1,000 companies. Compute the margin of error
and a 95% confidence interval...

For many years businesses have struggled with the rising cost of
health care. But recently, the increases have slowed due to less
inflation in health care prices and employees paying for a larger
portion of health care benefits. A recent Mercer survey showed that
57% of U.S. employers were likely to require higher employee
contributions for health care coverage in 2009. Suppose the survey
was based on a sample of 784 companies.
Compute the margin of error and a confidence interval...

For many years businesses have struggled with the rising cost of
health care. But recently, the increases have slowed due to less
inflation in health care prices and employees paying for a larger
portion of health care benefits. A recent Mercer survey showed that
62% of U.S. employers were likely to require higher employee
contributions for health care coverage in 2009. Suppose the survey
was based on a sample of 943 companies.
Compute the margin of error and a 99%...

1)For many years businesses have struggled with the rising cost
of health care. But recently, the increases have slowed due to less
inflation in health care prices and employees paying for a larger
portion of health care benefits. A recent Mercer survey showed that
52% of U.S. employers were likely to require higher employee
contributions for health care coverage. Suppose the survey was
based on a sample of 900 companies. Compute the margin of error and
a 95% confidence interval...

A recent survey showed that 65% of U.S. employers were likely to
require higher employee contributions for health care coverage.
Suppose the survey was based on a sample of 700 companies. Find the
80% confidence interval for the proportion of all companies likely
to require higher employee contributions for health care coverage.
Find the left endpoint and the right endpoint. Carry all decimals
until you reach the final answer. Then when you reach the final
answer round to 4 decimals.

1. Costs are rising for all kinds of health care. The mean
monthly rent at assisted-living facilities was recently reported to
have increased 18% over the last five years. A recent random sample
of 121 observations reported a sample mean of $3486. Assume that
past studies have informed us that the population standard
deviation is $650. For this problem, round your answers to 2 digits
after the decimal point.
(a) What are the end points of a 90% confidence-interval
estimate...

In the spring of 2017, the Consumer Reports National Research
Center conducted a survey of 1,007 adults to learn about their
major healthcare concerns. The survey results showed that 575 of
the respondents lack confidence they will be able to afford health
insurance in the future.
(a)
What is the point estimate of the population proportion of
adults who lack confidence they will be able to afford health
insurance in the future. (Round your answer to two decimal
places.)
(b)...

A survey commissioned by a health care group reported that 16% of
New Zealanders consume five or more servings of soft drinks per
week. The data were obtained by an online survey of 2,006 randomly
selected New Zealanders over 15 years of age.
Find a 95% confidence interval for the proportion of New
Zealanders who report that they consume five or more servings of
soft drinks per week. (Round your answers to four decimal
places.)

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